Chapter 1
Lookup tables for all problems in current book

1.1 Chapter 1. What is a differential equation. Section 1.2 THE NATURE OF SOLUTIONS. Page 9
1.2 Chapter 1. What is a differential equation. Section 1.3 SEPARABLE EQUATIONS. Page 12
1.3 Chapter 1. What is a differential equation. Section 1.4 First Order Linear Equations. Page 15
1.4 Chapter 1. What is a differential equation. Section 1.5. Exact Equations. Page 20
1.5 Chapter 1. What is a differential equation. Section 1.7. Homogeneous Equations. Page 28
1.6 Chapter 1. What is a differential equation. Section 1.8. Integrating Factors. Page 32
1.7 Chapter 1. What is a differential equation. Section 1.9. Reduction of Order. Page 38
1.8 Chapter 1. What is a differential equation. Problems for Review and Discovery. Page 53
1.9 Chapter 2. Second-Order Linear Equations. Section 2.1. Linear Equations with Constant Coefficients. Page 62
1.10 Chapter 2. Second-Order Linear Equations. Section 2.2. THE METHOD OF UNDETERMINED COEFFICIENTS. Page 67
1.11 Chapter 2. Second-Order Linear Equations. Section 2.3. THE METHOD OF VARIATION OF PARAMETERS. Page 71
1.12 Chapter 2. Second-Order Linear Equations. Section 2.4. THE USE OF A KNOWN SOLUTION TO FIND ANOTHER. Page 74
1.13 Chapter 2. Section 2.7. HIGHER ORDER LINEAR EQUATIONS, COUPLED HARMONIC OSCILLATORS Page 98
1.14 Chapter 2. Problems for Review and Discovery. Drill excercises. Page 105
1.15 Chapter 2. Problems for Review and Discovery. Challenge excercises. Page 105
1.16 Chapter 2. Problems for Review and Discovery. Problems for Discussion and Exploration. Page 105
1.17 Chapter 4. Power Series Solutions and Special Functions. Section 4.2. Series Solutions of First-Order Differential Equations Page 162
1.18 Chapter 4. Power Series Solutions and Special Functions. Section 4.3. Second-Order Linear Equations: Ordinary Points. Page 169
1.19 Chapter 4. Power Series Solutions and Special Functions. Section 4.4. REGULAR SINGULAR POINTS. Page 175
1.20 Chapter 4. Power Series Solutions and Special Functions. Section 4.5. More on Regular Singular Points. Page 183
1.21 Chapter 4. Power Series Solutions and Special Functions. Section 4.6. Gauss Hypergeometric Equation. Page 187
1.22 Chapter 4. Power Series Solutions and Special Functions. Problems for review and discovert. (A) Drill Exercises . Page 194
1.23 Chapter 4. Power Series Solutions and Special Functions. Problems for review and discovert. (B) Challenge Problems . Page 194
1.24 Chapter 7. Laplace Transforms. Section 7.5 The Unit Step and Impulse Functions. Page 303
1.25 Chapter 7. Laplace Transforms. Section 7.5 Problesm for review and discovery. Section A, Drill exercises. Page 309
1.26 Chapter 7. Laplace Transforms. Section 7.5 Problesm for review and discovery. Section B, Challenge Problems. Page 310
1.27 Chapter 10. Systems of First-Order Equations. Section 10.2 Linear Systems. Page 380
1.28 Chapter 10. Systems of First-Order Equations. Section 10.3 Homogeneous Linear Systems with Constant Coefficients. Page 387
1.29 Chapter 10. Systems of First-Order Equations. Section A. Drill exercises. Page 400
1.30 Chapter 10. Systems of First-Order Equations. Section B. Challenge Problems. Page 401

1.1 Chapter 1. What is a differential equation. Section 1.2 THE NATURE OF SOLUTIONS. Page 9

Table 1.1: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

9048

1(a)

\begin{align*} y^{\prime }&=2 x \\ \end{align*}

9049

1(b)

\begin{align*} x y^{\prime }&=2 y \\ \end{align*}

9050

1(c)

\begin{align*} y y^{\prime }&={\mathrm e}^{2 x} \\ \end{align*}

9051

1(d)

\begin{align*} y^{\prime }&=k y \\ \end{align*}

9052

1(e)

\begin{align*} 4 y+y^{\prime \prime }&=0 \\ \end{align*}

9053

1(f)

\begin{align*} y^{\prime \prime }-4 y&=0 \\ \end{align*}

9054

1(h)

\begin{align*} x y^{\prime }+y&=y^{\prime } \sqrt {1-x^{2} y^{2}} \\ \end{align*}

9055

1(i)

\begin{align*} x y^{\prime }&=y+x^{2}+y^{2} \\ \end{align*}

9056

1(j)

\begin{align*} y^{\prime }&=\frac {y x}{x^{2}+y^{2}} \\ \end{align*}

9057

1(k)

\begin{align*} 2 x y y^{\prime }&=x^{2}+y^{2} \\ \end{align*}

9058

1(L)

\begin{align*} x y^{\prime }+y&=x^{4} {y^{\prime }}^{2} \\ \end{align*}

9059

1(m)

\begin{align*} y^{\prime }&=\frac {y^{2}}{y x -x^{2}} \\ \end{align*}

9060

1(n)

\begin{align*} \left (y \cos \left (y\right )-\sin \left (y\right )+x \right ) y^{\prime }&=y \\ \end{align*}

9061

1(o)

\begin{align*} 1+y^{2}+y^{2} y^{\prime }&=0 \\ \end{align*}

9062

2(a)

\begin{align*} y^{\prime }&={\mathrm e}^{3 x}-x \\ \end{align*}

9063

2(b)

\begin{align*} y^{\prime }&=x \,{\mathrm e}^{x^{2}} \\ \end{align*}

9064

2(c)

\begin{align*} \left (x +1\right ) y^{\prime }&=x \\ \end{align*}

9065

2(d)

\begin{align*} \left (x^{2}+1\right ) y^{\prime }&=x \\ \end{align*}

9066

2(e)

\begin{align*} \left (x^{2}+1\right ) y^{\prime }&=\arctan \left (x \right ) \\ \end{align*}

9067

2(f)

\begin{align*} x y^{\prime }&=1 \\ \end{align*}

9068

2(g)

\begin{align*} y^{\prime }&=\arcsin \left (x \right ) \\ \end{align*}

9069

2(h)

\begin{align*} \sin \left (x \right ) y^{\prime }&=1 \\ \end{align*}

9070

2(i)

\begin{align*} \left (x^{3}+1\right ) y^{\prime }&=x \\ \end{align*}

9071

2(j)

\begin{align*} \left (x^{2}-3 x +2\right ) y^{\prime }&=x \\ \end{align*}

9072

3(a)

\begin{align*} y^{\prime }&=x \,{\mathrm e}^{x} \\ y \left (1\right ) &= 3 \\ \end{align*}

9073

3(b)

\begin{align*} y^{\prime }&=2 \sin \left (x \right ) \cos \left (x \right ) \\ y \left (0\right ) &= 1 \\ \end{align*}

9074

3(c)

\begin{align*} y^{\prime }&=\ln \left (x \right ) \\ y \left ({\mathrm e}\right ) &= 0 \\ \end{align*}

9075

3(d)

\begin{align*} \left (x^{2}-1\right ) y^{\prime }&=1 \\ y \left (2\right ) &= 0 \\ \end{align*}

9076

3(e)

\begin{align*} x \left (x^{2}-4\right ) y^{\prime }&=1 \\ y \left (1\right ) &= 0 \\ \end{align*}

9077

3(f)

\begin{align*} \left (x +1\right ) \left (x^{2}+1\right ) y^{\prime }&=2 x^{2}+x \\ y \left (0\right ) &= 1 \\ \end{align*}

9078

4

\begin{align*} y^{\prime }&=1+2 y x \\ \end{align*}

9079

5

\begin{align*} y^{\prime \prime }-5 y^{\prime }+4 y&=0 \\ \end{align*}

9080

6

\begin{align*} y^{\prime }&=\frac {2 x y^{2}}{1-x^{2} y} \\ \end{align*}

9081

7

\begin{align*} 2 y^{\prime \prime \prime }+y^{\prime \prime }-5 y^{\prime }+2 y&=0 \\ \end{align*}

1.2 Chapter 1. What is a differential equation. Section 1.3 SEPARABLE EQUATIONS. Page 12

Table 1.3: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

9082

1(a)

\begin{align*} x^{5} y^{\prime }+y^{5}&=0 \\ \end{align*}

9083

1(b)

\begin{align*} y^{\prime }&=4 y x \\ \end{align*}

9084

1(c)

\begin{align*} y^{\prime }+y \tan \left (x \right )&=0 \\ \end{align*}

9085

1(d)

\begin{align*} 1+y^{2}+\left (x^{2}+1\right ) y^{\prime }&=0 \\ \end{align*}

9086

1(e)

\begin{align*} \ln \left (y\right ) y-x y^{\prime }&=0 \\ \end{align*}

9087

1(f)

\begin{align*} x y^{\prime }&=\left (-4 x^{2}+1\right ) \tan \left (y\right ) \\ \end{align*}

9088

1(g)

\begin{align*} y^{\prime } \sin \left (y\right )&=x^{2} \\ \end{align*}

9089

1(h)

\begin{align*} y^{\prime }-y \tan \left (x \right )&=0 \\ \end{align*}

9090

1(i)

\begin{align*} x y y^{\prime }&=-1+y \\ \end{align*}

9091

1(j)

\begin{align*} x y^{2}-x^{2} y^{\prime }&=0 \\ \end{align*}

9092

2(a)

\begin{align*} y y^{\prime }&=x +1 \\ y \left (1\right ) &= 3 \\ \end{align*}

9093

2(b)

\begin{align*} x^{2} y^{\prime }&=y \\ y \left (1\right ) &= 0 \\ \end{align*}

9094

2(c)

\begin{align*} \frac {y^{\prime }}{x^{2}+1}&=\frac {x}{y} \\ y \left (1\right ) &= 3 \\ \end{align*}

9095

2(d)

\begin{align*} y^{2} y^{\prime }&=x +2 \\ y \left (0\right ) &= 4 \\ \end{align*}

9096

2(e)

\begin{align*} y^{\prime }&=x^{2} y^{2} \\ y \left (-1\right ) &= 2 \\ \end{align*}

9097

2(e)

\begin{align*} \left (y+1\right ) y^{\prime }&=-x^{2}+1 \\ y \left (-1\right ) &= -2 \\ \end{align*}

9098

3

\begin{align*} \frac {y^{\prime \prime }}{y^{\prime }}&=x^{2} \\ \end{align*}

9099

4

\begin{align*} y^{\prime } y^{\prime \prime }&=x \left (x +1\right ) \\ y \left (1\right ) &= 3 \\ \end{align*}

1.3 Chapter 1. What is a differential equation. Section 1.4 First Order Linear Equations. Page 15

Table 1.5: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

9100

1(a)

\begin{align*} y^{\prime }-y x&=0 \\ \end{align*}

9101

1(b)

\begin{align*} y^{\prime }+y x&=x \\ \end{align*}

9102

1(c)

\begin{align*} y^{\prime }+y&=\frac {1}{{\mathrm e}^{2 x}+1} \\ \end{align*}

9103

1(d)

\begin{align*} y^{\prime }+y&=2 x \,{\mathrm e}^{-x}+x^{2} \\ \end{align*}

9104

1(e)

\begin{align*} 2 y-x^{3}&=x y^{\prime } \\ \end{align*}

9105

1(f)

\begin{align*} y^{\prime }+2 y x&=0 \\ \end{align*}

9106

1(g)

\begin{align*} x y^{\prime }-3 y&=x^{4} \\ \end{align*}

9107

1(h)

\begin{align*} \left (x^{2}+1\right ) y^{\prime }+2 y x&=\cot \left (x \right ) \\ \end{align*}

9108

1(i)

\begin{align*} y^{\prime }+y \cot \left (x \right )&=2 x \csc \left (x \right ) \\ \end{align*}

9109

1(j)

\begin{align*} y-x +x y \cot \left (x \right )+x y^{\prime }&=0 \\ \end{align*}

9110

2(a)

\begin{align*} y^{\prime }-y x&=0 \\ y \left (1\right ) &= 3 \\ \end{align*}

9111

2(b)

\begin{align*} y^{\prime }-2 y x&=6 x \,{\mathrm e}^{x^{2}} \\ y \left (1\right ) &= 1 \\ \end{align*}

9112

2(c)

\begin{align*} x \ln \left (x \right ) y^{\prime }+y&=3 x^{3} \\ y \left (1\right ) &= 0 \\ \end{align*}

9113

2(d)

\begin{align*} y^{\prime }-\frac {y}{x}&=x^{2} \\ y \left (1\right ) &= 3 \\ \end{align*}

9114

2(e)

\begin{align*} y^{\prime }+4 y&={\mathrm e}^{-x} \\ y \left (0\right ) &= 0 \\ \end{align*}

9115

2(f)

\begin{align*} y x +x^{2} y^{\prime }&=2 x \\ y \left (1\right ) &= 1 \\ \end{align*}

9116

3(a)

\begin{align*} x y^{\prime }+y&=x^{4} y^{3} \\ \end{align*}

9117

3(b)

\begin{align*} x y^{2} y^{\prime }+y^{3}&=x \cos \left (x \right ) \\ \end{align*}

9118

3(c)

\begin{align*} x y^{\prime }+y&=x y^{2} \\ \end{align*}

9119

3(d)

\begin{align*} y^{\prime }+y x&=x y^{4} \\ \end{align*}

9120

4(a)

\begin{align*} \left ({\mathrm e}^{y}-2 y x \right ) y^{\prime }&=y^{2} \\ \end{align*}

9121

4(b)

\begin{align*} -x y^{\prime }+y&=y^{\prime } y^{2} {\mathrm e}^{y} \\ \end{align*}

9122

4(c)

\begin{align*} x y^{\prime }+2&=x^{3} \left (-1+y\right ) y^{\prime } \\ \end{align*}

9123

6

\begin{align*} x y^{\prime }&=2 x^{2} y+y \ln \left (x \right ) \\ \end{align*}

9124

7

\begin{align*} y^{\prime } \sin \left (2 x \right )&=2 y+2 \cos \left (x \right ) \\ \end{align*}

1.4 Chapter 1. What is a differential equation. Section 1.5. Exact Equations. Page 20

Table 1.7: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

9125

1

\begin{align*} \left (x +\frac {2}{y}\right ) y^{\prime }+y&=0 \\ \end{align*}

9126

2

\begin{align*} \sin \left (x \right ) \tan \left (y\right )+1+\cos \left (x \right ) \sec \left (y\right )^{2} y^{\prime }&=0 \\ \end{align*}

9127

3

\begin{align*} y-x^{3}+\left (y^{3}+x \right ) y^{\prime }&=0 \\ \end{align*}

9128

4

\begin{align*} 2 y^{2}-4 x +5&=\left (4-2 y+4 y x \right ) y^{\prime } \\ \end{align*}

9129

5

\begin{align*} y+y \cos \left (y x \right )+\left (x +x \cos \left (y x \right )\right ) y^{\prime }&=0 \\ \end{align*}

9130

6

\begin{align*} \cos \left (x \right ) \cos \left (y\right )^{2}+2 \sin \left (x \right ) \sin \left (y\right ) \cos \left (y\right ) y^{\prime }&=0 \\ \end{align*}

9131

7

\begin{align*} \left (\sin \left (x \right ) \sin \left (y\right )-x \,{\mathrm e}^{y}\right ) y^{\prime }&={\mathrm e}^{y}+\cos \left (x \right ) \cos \left (y\right ) \\ \end{align*}

9132

8

\begin{align*} -\frac {\sin \left (\frac {x}{y}\right )}{y}+\frac {x \sin \left (\frac {x}{y}\right ) y^{\prime }}{y^{2}}&=0 \\ \end{align*}

9133

9

\begin{align*} 1+y+\left (1-x \right ) y^{\prime }&=0 \\ \end{align*}

9134

10

\begin{align*} 2 x y^{3}+\cos \left (x \right ) y+\left (3 x^{2} y^{2}+\sin \left (x \right )\right ) y^{\prime }&=0 \\ \end{align*}

9135

11

\begin{align*} \frac {y}{1-x^{2} y^{2}}+\frac {x y^{\prime }}{1-x^{2} y^{2}}&=1 \\ \end{align*}

9136

12

\begin{align*} 2 x y^{4}+\sin \left (y\right )+\left (4 x^{2} y^{3}+x \cos \left (y\right )\right ) y^{\prime }&=0 \\ \end{align*}

9137

13

\begin{align*} \frac {x y^{\prime }+y}{1-x^{2} y^{2}}+x&=0 \\ \end{align*}

9138

14

\begin{align*} 2 x \left (1+\sqrt {x^{2}-y}\right )&=\sqrt {x^{2}-y}\, y^{\prime } \\ \end{align*}

9139

15

\begin{align*} x \ln \left (y\right )+y x +\left (y \ln \left (x \right )+y x \right ) y^{\prime }&=0 \\ \end{align*}

9140

16

\begin{align*} {\mathrm e}^{y^{2}}-\csc \left (y\right ) \csc \left (x \right )^{2}+\left (2 x y \,{\mathrm e}^{y^{2}}-\csc \left (y\right ) \cot \left (y\right ) \cot \left (x \right )\right ) y^{\prime }&=0 \\ \end{align*}

9141

17

\begin{align*} 1+y^{2} \sin \left (2 x \right )-2 y \cos \left (x \right )^{2} y^{\prime }&=0 \\ \end{align*}

9142

18

\begin{align*} \frac {x}{\left (x^{2}+y^{2}\right )^{{3}/{2}}}+\frac {y y^{\prime }}{\left (x^{2}+y^{2}\right )^{{3}/{2}}}&=0 \\ \end{align*}

9143

19

\begin{align*} 3 x^{2} \left (1+\ln \left (y\right )\right )+\left (\frac {x^{3}}{y}-2 y\right ) y^{\prime }&=0 \\ \end{align*}

9144

20

\begin{align*} \frac {-x y^{\prime }+y}{\left (x +y\right )^{2}}+y^{\prime }&=1 \\ \end{align*}

9145

21

\begin{align*} \frac {4 y^{2}-2 x^{2}}{4 x y^{2}-x^{3}}+\frac {\left (8 y^{2}-x^{2}\right ) y^{\prime }}{4 y^{3}-x^{2} y}&=0 \\ \end{align*}

1.5 Chapter 1. What is a differential equation. Section 1.7. Homogeneous Equations. Page 28

Table 1.9: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

9146

1(a)

\begin{align*} x^{2}-2 y^{2}+x y y^{\prime }&=0 \\ \end{align*}

9147

1(b)

\begin{align*} x^{2} y^{\prime }-3 y x -2 y^{2}&=0 \\ \end{align*}

9148

1(c)

\begin{align*} x^{2} y^{\prime }&=3 \left (x^{2}+y^{2}\right ) \arctan \left (\frac {y}{x}\right )+y x \\ \end{align*}

9149

1(d)

\begin{align*} x \sin \left (\frac {y}{x}\right ) y^{\prime }&=y \sin \left (\frac {y}{x}\right )+x \\ \end{align*}

9150

1(e)

\begin{align*} x y^{\prime }&=y+2 x \,{\mathrm e}^{-\frac {y}{x}} \\ \end{align*}

9151

1(f)

\begin{align*} x -y-\left (x +y\right ) y^{\prime }&=0 \\ \end{align*}

9152

1(g)

\begin{align*} x y^{\prime }&=2 x -6 y \\ \end{align*}

9153

1(h)

\begin{align*} x y^{\prime }&=\sqrt {x^{2}+y^{2}} \\ \end{align*}

9154

1(i)

\begin{align*} x^{2} y^{\prime }&=y^{2}+2 y x \\ \end{align*}

9155

1(j)

\begin{align*} x^{3}+y^{3}-x y^{2} y^{\prime }&=0 \\ \end{align*}

9156

4(a)

\begin{align*} y^{\prime }&=\frac {x +y+4}{x -y-6} \\ \end{align*}

9157

4(b)

\begin{align*} y^{\prime }&=\frac {x +y+4}{x +y-6} \\ \end{align*}

9158

4(c)

\begin{align*} 2 x -2 y+\left (-1+y\right ) y^{\prime }&=0 \\ \end{align*}

9159

4(d)

\begin{align*} y^{\prime }&=\frac {x +y-1}{x +4 y+2} \\ \end{align*}

9160

4(e)

\begin{align*} 2 x +3 y-1-4 \left (x +1\right ) y^{\prime }&=0 \\ \end{align*}

9161

5(a)

\begin{align*} y^{\prime }&=\frac {1-x y^{2}}{2 x^{2} y} \\ \end{align*}

9162

5(b)

\begin{align*} y^{\prime }&=\frac {2+3 x y^{2}}{4 x^{2} y} \\ \end{align*}

9163

5(c)

\begin{align*} y^{\prime }&=\frac {y-x y^{2}}{x +x^{2} y} \\ \end{align*}

9164

7(a)

\begin{align*} y^{\prime }&=\sin \left (\frac {y}{x}\right )-\cos \left (\frac {y}{x}\right ) \\ \end{align*}

9165

7(b)

\begin{align*} {\mathrm e}^{\frac {x}{y}}-\frac {y y^{\prime }}{x}&=0 \\ \end{align*}

9166

7(c)

\begin{align*} y^{\prime }&=\frac {x^{2}-y x}{y^{2} \cos \left (\frac {x}{y}\right )} \\ \end{align*}

9167

7(d)

\begin{align*} y^{\prime }&=\frac {y \tan \left (\frac {y}{x}\right )}{x} \\ \end{align*}

1.6 Chapter 1. What is a differential equation. Section 1.8. Integrating Factors. Page 32

Table 1.11: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

9168

1(a)

\begin{align*} \left (3 x^{2}-y^{2}\right ) y^{\prime }-2 y x&=0 \\ \end{align*}

9169

1(b)

\begin{align*} y x -1+\left (x^{2}-y x \right ) y^{\prime }&=0 \\ \end{align*}

9170

1(c)

\begin{align*} x y^{\prime }+y+3 x^{3} y^{4} y^{\prime }&=0 \\ \end{align*}

9171

1(d)

\begin{align*} {\mathrm e}^{x}+\left ({\mathrm e}^{x} \cot \left (y\right )+2 \csc \left (y\right ) y\right ) y^{\prime }&=0 \\ \end{align*}

9172

1(e)

\begin{align*} \left (x +2\right ) \sin \left (y\right )+x \cos \left (y\right ) y^{\prime }&=0 \\ \end{align*}

9173

1(f)

\begin{align*} y+\left (x -2 x^{2} y^{3}\right ) y^{\prime }&=0 \\ \end{align*}

9174

1(g)

\begin{align*} x +3 y^{2}+2 x y y^{\prime }&=0 \\ \end{align*}

9175

1(h)

\begin{align*} y+\left (2 x -y \,{\mathrm e}^{y}\right ) y^{\prime }&=0 \\ \end{align*}

9176

1(i)

\begin{align*} \ln \left (y\right ) y-2 y x +\left (x +y\right ) y^{\prime }&=0 \\ \end{align*}

9177

1(j)

\begin{align*} y^{2}+y x +1+\left (x^{2}+y x +1\right ) y^{\prime }&=0 \\ \end{align*}

9178

1(k)

\begin{align*} x^{3}+x y^{3}+3 y^{2} y^{\prime }&=0 \\ \end{align*}

9179

4

\begin{align*} y^{\prime }&=\frac {2 y}{x}+\frac {x^{3}}{y}+x \tan \left (\frac {y}{x^{2}}\right ) \\ \end{align*}

1.7 Chapter 1. What is a differential equation. Section 1.9. Reduction of Order. Page 38

Table 1.13: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

9180

1(a)

\begin{align*} y y^{\prime \prime }+{y^{\prime }}^{2}&=0 \\ \end{align*}

9181

1(b)

\begin{align*} x y y^{\prime \prime }&={y^{\prime }}^{3}+y^{\prime } \\ \end{align*}

9182

1(c)

\begin{align*} y^{\prime \prime }-k^{2} y&=0 \\ \end{align*}

9183

1(d)

\begin{align*} x^{2} y^{\prime \prime }&=2 x y^{\prime }+{y^{\prime }}^{2} \\ \end{align*}

9184

1(e)

\begin{align*} 2 y y^{\prime \prime }&=1+{y^{\prime }}^{2} \\ \end{align*}

9185

1(f)

\begin{align*} y y^{\prime \prime }-{y^{\prime }}^{2}&=0 \\ \end{align*}

9186

1(g)

\begin{align*} x y^{\prime \prime }+y^{\prime }&=4 x \\ \end{align*}

9187

2(a)

\begin{align*} \left (x^{2}+2 y^{\prime }\right ) y^{\prime \prime }+2 x y^{\prime }&=0 \\ y \left (0\right ) &= 1 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

9188

2(b)

\begin{align*} y y^{\prime \prime }&=y^{2} y^{\prime }+{y^{\prime }}^{2} \\ y \left (0\right ) &= -{\frac {1}{2}} \\ y^{\prime }\left (0\right ) &= 1 \\ \end{align*}

9189

2(c)

\begin{align*} y^{\prime \prime }&={\mathrm e}^{y} y^{\prime } \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 2 \\ \end{align*}

9190

3(a)

\begin{align*} y^{\prime \prime }&=1+{y^{\prime }}^{2} \\ \end{align*}

9191

3(b)

\begin{align*} y^{\prime \prime }+{y^{\prime }}^{2}&=1 \\ \end{align*}

1.8 Chapter 1. What is a differential equation. Problems for Review and Discovery. Page 53

Table 1.15: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

9192

1(a)

\begin{align*} x y^{\prime }+y&=x \\ \end{align*}

9193

1(b)

\begin{align*} x^{2} y^{\prime }+y&=x^{2} \\ \end{align*}

9194

1(c)

\begin{align*} x^{2} y^{\prime }&=y \\ \end{align*}

9195

1(d)

\begin{align*} \sec \left (x \right ) y^{\prime }&=\sec \left (y\right ) \\ \end{align*}

9196

1(e)

\begin{align*} y^{\prime }&=\frac {x^{2}+y^{2}}{x^{2}-y^{2}} \\ \end{align*}

9197

1(f)

\begin{align*} y^{\prime }&=\frac {x +2 y}{2 x -y} \\ \end{align*}

9198

1(g)

\begin{align*} x^{2} y^{\prime }+2 y x&=0 \\ \end{align*}

9199

1(h)

\begin{align*} -\sin \left (x \right ) \sin \left (y\right )+\cos \left (x \right ) \cos \left (y\right ) y^{\prime }&=0 \\ \end{align*}

9200

2(a)

\begin{align*} x y^{\prime }-y&=2 x \\ y \left (1\right ) &= 0 \\ \end{align*}

9201

2(b)

\begin{align*} x^{2} y^{\prime }-2 y&=3 x^{2} \\ y \left (1\right ) &= 2 \\ \end{align*}

9202

2(c)

\begin{align*} y^{2} y^{\prime }&=x \\ y \left (-1\right ) &= 3 \\ \end{align*}

9203

2(d)

\begin{align*} \csc \left (x \right ) y^{\prime }&=\csc \left (y\right ) \\ y \left (\frac {\pi }{2}\right ) &= 1 \\ \end{align*}

9204

2(e)

\begin{align*} y^{\prime }&=\frac {x +y}{x -y} \\ y \left (1\right ) &= 1 \\ \end{align*}

9205

2(f)

\begin{align*} y^{\prime }&=\frac {x^{2}+2 y^{2}}{x^{2}-2 y^{2}} \\ \end{align*}

9206

2(g)

\begin{align*} 2 x \cos \left (y\right )-x^{2} \sin \left (y\right ) y^{\prime }&=0 \\ y \left (1\right ) &= 1 \\ \end{align*}

9207

2(h)

\begin{align*} \frac {1}{y}-\frac {x y^{\prime }}{y^{2}}&=0 \\ \end{align*}

9208

4(a)

\begin{align*} y y^{\prime \prime }-{y^{\prime }}^{2}&=0 \\ \end{align*}

9209

4(b)

\begin{align*} x y^{\prime \prime }&=y^{\prime }-2 {y^{\prime }}^{3} \\ \end{align*}

9210

4(c)

\begin{align*} y y^{\prime \prime }+y^{\prime }&=0 \\ \end{align*}

9211

4(d)

\begin{align*} x y^{\prime \prime }-3 y^{\prime }&=5 x \\ \end{align*}

1.9 Chapter 2. Second-Order Linear Equations. Section 2.1. Linear Equations with Constant Coefficients. Page 62

Table 1.17: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

9212

1(a)

\begin{align*} y^{\prime \prime }+y^{\prime }-6 y&=0 \\ \end{align*}

9213

1(b)

\begin{align*} y+2 y^{\prime }+y^{\prime \prime }&=0 \\ \end{align*}

9214

1(c)

\begin{align*} y^{\prime \prime }+8 y&=0 \\ \end{align*}

9215

1(d)

\begin{align*} 2 y^{\prime \prime }-4 y^{\prime }+4 y&=0 \\ \end{align*}

9216

1(e)

\begin{align*} y^{\prime \prime }-4 y^{\prime }+4 y&=0 \\ \end{align*}

9217

1(f)

\begin{align*} 20 y-9 y^{\prime }+y^{\prime \prime }&=0 \\ \end{align*}

9218

1(g)

\begin{align*} 2 y^{\prime \prime }+2 y^{\prime }+3 y&=0 \\ \end{align*}

9219

1(h)

\begin{align*} 4 y^{\prime \prime }-12 y^{\prime }+9 y&=0 \\ \end{align*}

9220

1(i)

\begin{align*} y^{\prime \prime }+y&=0 \\ \end{align*}

9221

1(j)

\begin{align*} y^{\prime \prime }-6 y^{\prime }+25 y&=0 \\ \end{align*}

9222

1(k)

\begin{align*} 4 y^{\prime \prime }+20 y^{\prime }+25 y&=0 \\ \end{align*}

9223

1(l)

\begin{align*} 3 y+2 y^{\prime }+y^{\prime \prime }&=0 \\ \end{align*}

9224

1(m)

\begin{align*} y^{\prime \prime }&=4 y \\ \end{align*}

9225

1(n)

\begin{align*} 4 y^{\prime \prime }-8 y^{\prime }+7 y&=0 \\ \end{align*}

9226

1(o)

\begin{align*} 2 y^{\prime \prime }+y^{\prime }-y&=0 \\ \end{align*}

9227

1(p)

\begin{align*} 5 y+4 y^{\prime }+y^{\prime \prime }&=0 \\ \end{align*}

9228

1(q)

\begin{align*} 5 y+4 y^{\prime }+y^{\prime \prime }&=0 \\ \end{align*}

9229

1(r)

\begin{align*} y^{\prime \prime }+4 y^{\prime }-5 y&=0 \\ \end{align*}

9230

2(a)

\begin{align*} 6 y-5 y^{\prime }+y^{\prime \prime }&=0 \\ y \left (1\right ) &= {\mathrm e}^{2} \\ y^{\prime }\left (1\right ) &= 3 \,{\mathrm e}^{2} \\ \end{align*}

9231

2(b)

\begin{align*} y^{\prime \prime }-6 y^{\prime }+5 y&=0 \\ y \left (0\right ) &= 3 \\ y^{\prime }\left (0\right ) &= 11 \\ \end{align*}

9232

2(c)

\begin{align*} y^{\prime \prime }-6 y^{\prime }+9 y&=0 \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 5 \\ \end{align*}

9233

2(d)

\begin{align*} 5 y+4 y^{\prime }+y^{\prime \prime }&=0 \\ y \left (0\right ) &= 1 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

9234

2(e)

\begin{align*} y^{\prime \prime }+4 y^{\prime }+2 y&=0 \\ y \left (0\right ) &= -1 \\ y^{\prime }\left (0\right ) &= 2+3 \sqrt {2} \\ \end{align*}

9235

2(f)

\begin{align*} y^{\prime \prime }+8 y^{\prime }-9 y&=0 \\ y \left (1\right ) &= 2 \\ y^{\prime }\left (1\right ) &= 0 \\ \end{align*}

9236

5(a)

\begin{align*} x^{2} y^{\prime \prime }+3 x y^{\prime }+10 y&=0 \\ \end{align*}

9237

5(b)

\begin{align*} 2 x^{2} y^{\prime \prime }+10 x y^{\prime }+8 y&=0 \\ \end{align*}

9238

5(c)

\begin{align*} x^{2} y^{\prime \prime }+2 x y^{\prime }-12 y&=0 \\ \end{align*}

9239

5(d)

\begin{align*} 4 x^{2} y^{\prime \prime }-3 y&=0 \\ \end{align*}

9240

5(e)

\begin{align*} x^{2} y^{\prime \prime }-3 x y^{\prime }+4 y&=0 \\ \end{align*}

9241

5(f)

\begin{align*} x^{2} y^{\prime \prime }+2 x y^{\prime }-6 y&=0 \\ \end{align*}

9242

5(g)

\begin{align*} x^{2} y^{\prime \prime }+2 x y^{\prime }+3 y&=0 \\ \end{align*}

9243

5(h)

\begin{align*} x^{2} y^{\prime \prime }+x y^{\prime }-2 y&=0 \\ \end{align*}

9244

5(i)

\begin{align*} x^{2} y^{\prime \prime }+x y^{\prime }-16 y&=0 \\ \end{align*}

1.10 Chapter 2. Second-Order Linear Equations. Section 2.2. THE METHOD OF UNDETERMINED COEFFICIENTS. Page 67

Table 1.19: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

9245

1(a)

\begin{align*} y^{\prime \prime }+3 y^{\prime }-10 y&=6 \,{\mathrm e}^{4 x} \\ \end{align*}

9246

1(b)

\begin{align*} 4 y+y^{\prime \prime }&=3 \sin \left (x \right ) \\ \end{align*}

9247

1(c)

\begin{align*} y^{\prime \prime }+10 y^{\prime }+25 y&=14 \,{\mathrm e}^{-5 x} \\ \end{align*}

9248

1(d)

\begin{align*} y^{\prime \prime }-2 y^{\prime }+5 y&=25 x^{2}+12 \\ \end{align*}

9249

1(e)

\begin{align*} y^{\prime \prime }-y^{\prime }-6 y&=20 \,{\mathrm e}^{-2 x} \\ \end{align*}

9250

1(f)

\begin{align*} 2 y-3 y^{\prime }+y^{\prime \prime }&=14 \sin \left (2 x \right )-18 \cos \left (2 x \right ) \\ \end{align*}

9251

1(g)

\begin{align*} y^{\prime \prime }+y&=2 \cos \left (x \right ) \\ \end{align*}

9252

1(h)

\begin{align*} y^{\prime \prime }-2 y^{\prime }&=12 x -10 \\ \end{align*}

9253

1(i)

\begin{align*} y-2 y^{\prime }+y^{\prime \prime }&=6 \,{\mathrm e}^{x} \\ \end{align*}

9254

1(j)

\begin{align*} y^{\prime \prime }-2 y^{\prime }+2 y&={\mathrm e}^{x} \sin \left (x \right ) \\ \end{align*}

9255

1(k)

\begin{align*} y^{\prime \prime }+y^{\prime }&=10 x^{4}+2 \\ \end{align*}

9256

3(a)

\begin{align*} 4 y+y^{\prime \prime }&=4 \cos \left (2 x \right )+6 \cos \left (x \right )+8 x^{2}-4 x \\ \end{align*}

9257

3(b)

\begin{align*} y^{\prime \prime }+9 y&=2 \sin \left (3 x \right )+4 \sin \left (x \right )-26 \,{\mathrm e}^{-2 x}+27 x^{3} \\ \end{align*}

9258

4(a)

\begin{align*} y^{\prime \prime }-3 y&={\mathrm e}^{2 x} \\ \end{align*}

9259

4(b)

\begin{align*} y^{\prime \prime \prime }+y^{\prime }&=\sin \left (x \right ) \\ \end{align*}

1.11 Chapter 2. Second-Order Linear Equations. Section 2.3. THE METHOD OF VARIATION OF PARAMETERS. Page 71

Table 1.21: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

9260

1(a)

\begin{align*} 4 y+y^{\prime \prime }&=\tan \left (2 x \right ) \\ \end{align*}

9261

1(b)

\begin{align*} y+2 y^{\prime }+y^{\prime \prime }&={\mathrm e}^{-x} \ln \left (x \right ) \\ \end{align*}

9262

1(c)

\begin{align*} y^{\prime \prime }-2 y^{\prime }-3 y&=64 x \,{\mathrm e}^{-x} \\ \end{align*}

9263

1(d)

\begin{align*} 5 y+2 y^{\prime }+y^{\prime \prime }&={\mathrm e}^{-x} \sec \left (2 x \right ) \\ \end{align*}

9264

1(e)

\begin{align*} 2 y^{\prime \prime }+3 y^{\prime }+y&={\mathrm e}^{-3 x} \\ \end{align*}

9265

1(f)

\begin{align*} 2 y-3 y^{\prime }+y^{\prime \prime }&=\frac {1}{1+{\mathrm e}^{-x}} \\ \end{align*}

9266

2(a)

\begin{align*} y^{\prime \prime }+y&=\sec \left (x \right ) \\ \end{align*}

9267

2(b)

\begin{align*} y^{\prime \prime }+y&=\cot \left (x \right )^{2} \\ \end{align*}

9268

2(c)

\begin{align*} y^{\prime \prime }+y&=\cot \left (2 x \right ) \\ \end{align*}

9269

2(d)

\begin{align*} y^{\prime \prime }+y&=x \cos \left (x \right ) \\ \end{align*}

9270

2(e)

\begin{align*} y^{\prime \prime }+y&=\tan \left (x \right ) \\ \end{align*}

9271

2(f)

\begin{align*} y^{\prime \prime }+y&=\sec \left (x \right ) \tan \left (x \right ) \\ \end{align*}

9272

2(g)

\begin{align*} y^{\prime \prime }+y&=\sec \left (x \right ) \csc \left (x \right ) \\ \end{align*}

9273

3

\begin{align*} y-2 y^{\prime }+y^{\prime \prime }&=2 x \\ \end{align*}

9274

4

\begin{align*} y^{\prime \prime }-y^{\prime }-6 y&={\mathrm e}^{-x} \\ \end{align*}

9275

5(a)

\begin{align*} \left (x^{2}-1\right ) y^{\prime \prime }-2 x y^{\prime }+2 y&=\left (x^{2}-1\right )^{2} \\ \end{align*}

9276

5(b)

\begin{align*} \left (x^{2}+x \right ) y^{\prime \prime }+\left (-x^{2}+2\right ) y^{\prime }-\left (x +2\right ) y&=x \left (x +1\right )^{2} \\ \end{align*}

9277

5(c)

\begin{align*} \left (1-x \right ) y^{\prime \prime }+x y^{\prime }-y&=\left (1-x \right )^{2} \\ \end{align*}

9278

5(d)

\begin{align*} y-\left (x +1\right ) y^{\prime }+x y^{\prime \prime }&=x^{2} {\mathrm e}^{2 x} \\ \end{align*}

9279

5(e)

\begin{align*} x^{2} y^{\prime \prime }-2 x y^{\prime }+2 y&=x \,{\mathrm e}^{-x} \\ \end{align*}

1.12 Chapter 2. Second-Order Linear Equations. Section 2.4. THE USE OF A KNOWN SOLUTION TO FIND ANOTHER. Page 74

Table 1.23: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

9280

1(a)

\begin{align*} y^{\prime \prime }+y&=0 \\ \end{align*}

9281

1(b)

\begin{align*} y^{\prime \prime }-y&=0 \\ \end{align*}

9282

2

\begin{align*} x y^{\prime \prime }+3 y^{\prime }&=0 \\ \end{align*}

9283

3

\begin{align*} x^{2} y^{\prime \prime }+x y^{\prime }-4 y&=0 \\ \end{align*}

9284

4

\begin{align*} \left (-x^{2}+1\right ) y^{\prime \prime }-2 x y^{\prime }+2 y&=0 \\ \end{align*}

9285

5

\begin{align*} x^{2} y^{\prime \prime }+x y^{\prime }+\left (x^{2}-\frac {1}{4}\right ) y&=0 \\ \end{align*}

9286

6(a)

\begin{align*} y^{\prime \prime }-\frac {x y^{\prime }}{x -1}+\frac {y}{x -1}&=0 \\ \end{align*}

9287

6(b)

\begin{align*} x^{2} y^{\prime \prime }+2 x y^{\prime }-2 y&=0 \\ \end{align*}

9288

6(c)

\begin{align*} x^{2} y^{\prime \prime }-x \left (x +2\right ) y^{\prime }+\left (x +2\right ) y&=0 \\ \end{align*}

9289

7

\begin{align*} y^{\prime \prime }-x f \left (x \right ) y^{\prime }+f \left (x \right ) y&=0 \\ \end{align*}

9290

8

\begin{align*} x y^{\prime \prime }-\left (2 x +1\right ) y^{\prime }+\left (x +1\right ) y&=0 \\ \end{align*}

1.13 Chapter 2. Section 2.7. HIGHER ORDER LINEAR EQUATIONS, COUPLED HARMONIC OSCILLATORS Page 98

Table 1.25: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

9291

1

\begin{align*} y^{\prime \prime \prime }-3 y^{\prime \prime }+2 y^{\prime }&=0 \\ \end{align*}

9292

2

\begin{align*} y^{\prime \prime \prime }-3 y^{\prime \prime }+4 y^{\prime }-2 y&=0 \\ \end{align*}

9293

3

\begin{align*} y^{\prime \prime \prime }-y&=0 \\ \end{align*}

9294

4

\begin{align*} y^{\prime \prime \prime }+y&=0 \\ \end{align*}

9295

5

\begin{align*} y^{\prime \prime \prime }+3 y^{\prime \prime }+3 y^{\prime }+y&=0 \\ \end{align*}

9296

6

\begin{align*} y^{\prime \prime \prime \prime }+4 y^{\prime \prime \prime }+6 y^{\prime \prime }+4 y^{\prime }+y&=0 \\ \end{align*}

9297

7

\begin{align*} y^{\prime \prime \prime \prime }-y&=0 \\ \end{align*}

9298

8

\begin{align*} y^{\prime \prime \prime \prime }+5 y^{\prime \prime }+4 y&=0 \\ \end{align*}

9299

9

\begin{align*} y^{\prime \prime \prime \prime }-2 a^{2} y^{\prime \prime }+a^{4} y&=0 \\ \end{align*}

9300

10

\begin{align*} a^{4} y+2 a^{2} y^{\prime \prime }+y^{\prime \prime \prime \prime }&=0 \\ \end{align*}

9301

11

\begin{align*} y^{\prime \prime \prime \prime }+2 y^{\prime \prime \prime }+2 y^{\prime \prime }+2 y^{\prime }+y&=0 \\ \end{align*}

9302

12

\begin{align*} y^{\prime \prime \prime \prime }+2 y^{\prime \prime \prime }-2 y^{\prime \prime }-6 y^{\prime }+5 y&=0 \\ \end{align*}

9303

13

\begin{align*} y^{\prime \prime \prime }-6 y^{\prime \prime }+11 y^{\prime }-6 y&=0 \\ \end{align*}

9304

14

\begin{align*} y^{\prime \prime \prime \prime }+y^{\prime \prime \prime }-3 y^{\prime \prime }-5 y^{\prime }-2 y&=0 \\ \end{align*}

9305

15

\begin{align*} y^{\left (5\right )}-6 y^{\prime \prime \prime \prime }-8 y^{\prime \prime \prime }+48 y^{\prime \prime }+16 y^{\prime }-96 y&=0 \\ \end{align*}

9306

16(a)

\begin{align*} y^{\prime \prime \prime \prime }&=0 \\ \end{align*}

9307

16(b)

\begin{align*} y^{\prime \prime \prime \prime }&=\sin \left (x \right )+24 \\ \end{align*}

9308

17

\begin{align*} y^{\prime \prime \prime }-3 y^{\prime \prime }+2 y^{\prime }&=10+42 \,{\mathrm e}^{3 x} \\ \end{align*}

9309

18

\begin{align*} y^{\prime \prime \prime }-y^{\prime }&=1 \\ y \left (0\right ) &= 4 \\ y^{\prime }\left (0\right ) &= 4 \\ y^{\prime \prime }\left (0\right ) &= 4 \\ \end{align*}

9310

19(a)

\begin{align*} 3 x^{2} y^{\prime \prime }+x^{3} y^{\prime \prime \prime }&=0 \\ \end{align*}

9311

19(b)

\begin{align*} x^{3} y^{\prime \prime \prime }+x^{2} y^{\prime \prime }-2 x y^{\prime }+2 y&=0 \\ \end{align*}

9312

19(c)

\begin{align*} x^{3} y^{\prime \prime \prime }+2 x^{2} y^{\prime \prime }+x y^{\prime }-y&=0 \\ \end{align*}

9313

20

\begin{align*} x^{3} y^{\prime \prime \prime \prime }+8 x^{2} y^{\prime \prime \prime }+8 x y^{\prime \prime }-8 y^{\prime }&=0 \\ \end{align*}

1.14 Chapter 2. Problems for Review and Discovery. Drill excercises. Page 105

Table 1.27: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

9314

1(a)

\begin{align*} y^{\prime \prime }-3 y^{\prime }+y&=0 \\ \end{align*}

9315

1(b)

\begin{align*} y^{\prime \prime }+y^{\prime }+y&=0 \\ \end{align*}

9316

1(c)

\begin{align*} y^{\prime \prime }+6 y^{\prime }+9 y&=0 \\ \end{align*}

9317

1(d)

\begin{align*} y^{\prime \prime }-y^{\prime }+6 y&=0 \\ \end{align*}

9318

1(e)

\begin{align*} y^{\prime \prime }-2 y^{\prime }-5 y&=x \\ \end{align*}

9319

1(f)

\begin{align*} y^{\prime \prime }+y&={\mathrm e}^{x} \\ \end{align*}

9320

1(g)

\begin{align*} y^{\prime \prime }+y^{\prime }+y&=\sin \left (x \right ) \\ \end{align*}

9321

1(h)

\begin{align*} y^{\prime \prime }-y&={\mathrm e}^{3 x} \\ \end{align*}

9322

2(a)

\begin{align*} y^{\prime \prime }+9 y&=0 \\ y \left (0\right ) &= 1 \\ y^{\prime }\left (0\right ) &= 2 \\ \end{align*}

9323

2(b)

\begin{align*} y^{\prime \prime }-y^{\prime }+4 y&=x \\ y \left (1\right ) &= 2 \\ y^{\prime }\left (1\right ) &= 1 \\ \end{align*}

9324

2(c)

\begin{align*} 5 y+2 y^{\prime }+y^{\prime \prime }&={\mathrm e}^{x} \\ y \left (0\right ) &= -1 \\ y^{\prime }\left (0\right ) &= 1 \\ \end{align*}

9325

2(d)

\begin{align*} y^{\prime \prime }+3 y^{\prime }+4 y&=\sin \left (x \right ) \\ y \left (\frac {\pi }{2}\right ) &= 1 \\ y^{\prime }\left (\frac {\pi }{2}\right ) &= -1 \\ \end{align*}

9326

2(e)

\begin{align*} y^{\prime \prime }+y&={\mathrm e}^{-x} \\ y \left (2\right ) &= 0 \\ y^{\prime }\left (2\right ) &= -2 \\ \end{align*}

9327

2(f)

\begin{align*} y^{\prime \prime }-y&=\cos \left (x \right ) \\ y \left (0\right ) &= 3 \\ y^{\prime }\left (2\right ) &= 2 \\ \end{align*}

9328

2(g)

\begin{align*} y^{\prime \prime }&=\tan \left (x \right ) \\ y \left (1\right ) &= 1 \\ y^{\prime }\left (1\right ) &= -1 \\ \end{align*}

9329

2(h)

\begin{align*} y^{\prime \prime }-2 y^{\prime }&=\ln \left (x \right ) \\ y \left (1\right ) &= {\mathrm e} \\ y^{\prime }\left (1\right ) &= {\mathrm e}^{-1} \\ \end{align*}

9330

3(a)

\begin{align*} y^{\prime \prime }+3 y^{\prime }+2 y&=2 x -1 \\ \end{align*}

9331

3(b)

\begin{align*} 2 y-3 y^{\prime }+y^{\prime \prime }&={\mathrm e}^{-x} \\ \end{align*}

9332

3(c)

\begin{align*} y^{\prime \prime }-y^{\prime }-2 y&=\cos \left (x \right ) \\ \end{align*}

9333

3(d)

\begin{align*} y^{\prime \prime }+2 y^{\prime }-y&={\mathrm e}^{x} \sin \left (x \right ) x \\ \end{align*}

9334

3(e)

\begin{align*} y^{\prime \prime }+9 y&=\sec \left (2 x \right ) \\ \end{align*}

9335

3(f)

\begin{align*} y^{\prime \prime }+4 y^{\prime }+4 y&=x \ln \left (x \right ) \\ \end{align*}

9336

3(g)

\begin{align*} x^{2} y^{\prime \prime }+3 x y^{\prime }+y&=\frac {2}{x} \\ \end{align*}

9337

3(h)

\begin{align*} 4 y+y^{\prime \prime }&=\tan \left (x \right )^{2} \\ \end{align*}

9338

4(a)

\begin{align*} y^{\prime \prime }-y&=3 \,{\mathrm e}^{2 x} \\ \end{align*}

9339

4(b)

\begin{align*} y^{\prime \prime }+y&=-8 \sin \left (3 x \right ) \\ \end{align*}

9340

4(c)

\begin{align*} y^{\prime \prime }+y^{\prime }+y&=x^{2}+2 x +2 \\ \end{align*}

9341

4(d)

\begin{align*} y^{\prime \prime }+y^{\prime }&=\frac {x -1}{x^{2}} \\ \end{align*}

1.15 Chapter 2. Problems for Review and Discovery. Challenge excercises. Page 105

Table 1.29: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

9342

3

\begin{align*} x^{2} y^{\prime \prime }-2 x y^{\prime }+2 y&=0 \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

9343

4

\begin{align*} y^{\prime \prime }+9 y&=-3 \cos \left (2 x \right ) \\ \end{align*}

1.16 Chapter 2. Problems for Review and Discovery. Problems for Discussion and Exploration. Page 105

Table 1.31: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

9344

1

\begin{align*} y^{\prime }+y&=\cos \left (x \right ) \\ \end{align*}

9345

2

\begin{align*} y^{\prime \prime }&=-3 y \\ y \left (0\right ) &= -1 \\ \end{align*}

9346

4

\begin{align*} y^{\prime \prime }+\sin \left (y\right )&=0 \\ \end{align*}

1.17 Chapter 4. Power Series Solutions and Special Functions. Section 4.2. Series Solutions of First-Order Differential Equations Page 162

Table 1.33: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

9347

1(a) solving using series

\begin{align*} y^{\prime }&=2 y x \\ \end{align*}

Series expansion around \(x=0\).

9348

1(a) solving directly

\begin{align*} y^{\prime }&=2 y x \\ \end{align*}

9349

1(b) solving using series

\begin{align*} y^{\prime }+y&=1 \\ \end{align*}

Series expansion around \(x=0\).

9350

1(b) solving directly

\begin{align*} y^{\prime }+y&=1 \\ \end{align*}

9351

1(c) solving using series

\begin{align*} y^{\prime }-y&=2 \\ \end{align*}

Series expansion around \(x=0\).

9352

1(c) solving directly

\begin{align*} y^{\prime }-y&=2 \\ \end{align*}

9353

1(d) solving using series

\begin{align*} y^{\prime }+y&=0 \\ \end{align*}

Series expansion around \(x=0\).

9354

1(d) solving directly

\begin{align*} y^{\prime }+y&=0 \\ \end{align*}

9355

1(e) solving using series

\begin{align*} y^{\prime }-y&=0 \\ \end{align*}

Series expansion around \(x=0\).

9356

1(e) solving directly

\begin{align*} y^{\prime }-y&=0 \\ \end{align*}

9357

1(f) solving using series

\begin{align*} y^{\prime }-y&=x^{2} \\ \end{align*}

Series expansion around \(x=0\).

9358

1(f) solving directly

\begin{align*} y^{\prime }-y&=x^{2} \\ \end{align*}

9359

2(a) solving using series

\begin{align*} x y^{\prime }&=y \\ \end{align*}

Series expansion around \(x=0\).

9360

2(a) solving directly

\begin{align*} x y^{\prime }&=y \\ \end{align*}

9361

2(b) solving using series

\begin{align*} x^{2} y^{\prime }&=y \\ \end{align*}

Series expansion around \(x=0\).

9362

2(b) solving directly

\begin{align*} x^{2} y^{\prime }&=y \\ \end{align*}

9363

2(c) solving using series

\begin{align*} y^{\prime }-\frac {y}{x}&=x^{2} \\ \end{align*}

Series expansion around \(x=0\).

9364

2(c) solving directly

\begin{align*} y^{\prime }-\frac {y}{x}&=x^{2} \\ \end{align*}

9365

2(d) solving using series

\begin{align*} y^{\prime }+\frac {y}{x}&=x \\ \end{align*}

9366

3

\begin{align*} y^{\prime }&=\frac {1}{\sqrt {-x^{2}+1}} \\ \end{align*}

Series expansion around \(x=0\).

9367

4

\begin{align*} y^{\prime }&=y+1 \\ \end{align*}

Series expansion around \(x=0\).

9368

5 solved using series

\begin{align*} y^{\prime }&=x -y \\ y \left (0\right ) &= 0 \\ \end{align*}

Series expansion around \(x=0\).

9369

5 solved directly

\begin{align*} y^{\prime }&=x -y \\ y \left (0\right ) &= 0 \\ \end{align*}

1.18 Chapter 4. Power Series Solutions and Special Functions. Section 4.3. Second-Order Linear Equations: Ordinary Points. Page 169

Table 1.35: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

9370

1(a)

\begin{align*} y^{\prime \prime }+x y^{\prime }+y&=0 \\ \end{align*}

Series expansion around \(x=0\).

9371

1(b)

\begin{align*} y x -y^{\prime }+y^{\prime \prime }&=0 \\ \end{align*}

Series expansion around \(x=0\).

9372

1(c)

\begin{align*} y^{\prime \prime }+2 x y^{\prime }-y&=x \\ \end{align*}

Series expansion around \(x=0\).

9373

1(d)

\begin{align*} y^{\prime \prime }+y^{\prime }-x^{2} y&=1 \\ \end{align*}

Series expansion around \(x=0\).

9374

1(e)

\begin{align*} \left (x^{2}+1\right ) y^{\prime \prime }+x y^{\prime }+y&=0 \\ \end{align*}

Series expansion around \(x=0\).

9375

1(f)

\begin{align*} y^{\prime \prime }+\left (x +1\right ) y^{\prime }-y&=0 \\ \end{align*}

Series expansion around \(x=0\).

9376

2

\begin{align*} \left (x^{2}+1\right ) y^{\prime \prime }+2 x y^{\prime }-2 y&=0 \\ \end{align*}

Series expansion around \(x=0\).

9377

3

\begin{align*} y^{\prime \prime }+x y^{\prime }+y&=0 \\ \end{align*}

Series expansion around \(x=0\).

9378

4(a)

\begin{align*} y^{\prime \prime }+y^{\prime }-y x&=0 \\ y \left (0\right ) &= 1 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

Series expansion around \(x=0\).

9379

4(b)

\begin{align*} y^{\prime \prime }+y^{\prime }-y x&=0 \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 1 \\ \end{align*}

Series expansion around \(x=0\).

9380

5

\begin{align*} y^{\prime \prime }+\left (p +\frac {1}{2}-\frac {x^{2}}{4}\right ) y&=0 \\ \end{align*}

Series expansion around \(x=0\).

9381

6

\begin{align*} y^{\prime \prime }+y x&=0 \\ \end{align*}

Series expansion around \(x=0\).

9382

7

\begin{align*} \left (-x^{2}+1\right ) y^{\prime \prime }-x y^{\prime }+p^{2} y&=0 \\ \end{align*}

Series expansion around \(x=0\).

9383

8

\begin{align*} y^{\prime \prime }-2 x y^{\prime }+2 y p&=0 \\ \end{align*}

Series expansion around \(x=0\).

1.19 Chapter 4. Power Series Solutions and Special Functions. Section 4.4. REGULAR SINGULAR POINTS. Page 175

Table 1.37: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

9384

1(a)

\begin{align*} x^{3} \left (x -1\right ) y^{\prime \prime }-2 \left (x -1\right ) y^{\prime }+3 y x&=0 \\ \end{align*}

Series expansion around \(x=0\).

9385

1(b)

\begin{align*} x^{2} \left (x^{2}-1\right ) y^{\prime \prime }-x \left (1-x \right ) y^{\prime }+2 y&=0 \\ \end{align*}

Series expansion around \(x=0\).

9386

1(c)

\begin{align*} x^{2} y^{\prime \prime }+\left (2-x \right ) y^{\prime }&=0 \\ \end{align*}

Series expansion around \(x=0\).

9387

1(d)

\begin{align*} \left (1+3 x \right ) x y^{\prime \prime }-\left (x +1\right ) y^{\prime }+2 y&=0 \\ \end{align*}

Series expansion around \(x=0\).

9388

2(a)

\begin{align*} y^{\prime \prime }+y \sin \left (x \right )&=0 \\ \end{align*}

Series expansion around \(x=0\).

9389

2(b)

\begin{align*} x y^{\prime \prime }+y \sin \left (x \right )&=0 \\ \end{align*}

Series expansion around \(x=0\).

9390

2(c)

\begin{align*} x^{2} y^{\prime \prime }+y \sin \left (x \right )&=0 \\ \end{align*}

Series expansion around \(x=0\).

9391

2(d)

\begin{align*} x^{3} y^{\prime \prime }+y \sin \left (x \right )&=0 \\ \end{align*}

Series expansion around \(x=0\).

9392

2(e)

\begin{align*} x^{4} y^{\prime \prime }+y \sin \left (x \right )&=0 \\ \end{align*}

Series expansion around \(x=0\).

9393

3(a)

\begin{align*} x^{3} y^{\prime \prime }+\left (-1+\cos \left (2 x \right )\right ) y^{\prime }+2 y x&=0 \\ \end{align*}

Series expansion around \(x=0\).

9394

3(b)

\begin{align*} 4 x^{2} y^{\prime \prime }+\left (2 x^{4}-5 x \right ) y^{\prime }+\left (3 x^{2}+2\right ) y&=0 \\ \end{align*}

Series expansion around \(x=0\).

9395

3(c)

\begin{align*} x^{2} y^{\prime \prime }+3 x y^{\prime }+4 y x&=0 \\ \end{align*}

Series expansion around \(x=0\).

9396

3(d)

\begin{align*} x^{3} y^{\prime \prime }-4 x^{2} y^{\prime }+3 y x&=0 \\ \end{align*}

Series expansion around \(x=0\).

9397

4(a)

\begin{align*} 4 x y^{\prime \prime }+3 y^{\prime }+y&=0 \\ \end{align*}

Series expansion around \(x=0\).

9398

4(b)

\begin{align*} 2 x y^{\prime \prime }+\left (-x +3\right ) y^{\prime }-y&=0 \\ \end{align*}

Series expansion around \(x=0\).

9399

4(c)

\begin{align*} 2 x y^{\prime \prime }+\left (x +1\right ) y^{\prime }+3 y&=0 \\ \end{align*}

Series expansion around \(x=0\).

9400

4(d)

\begin{align*} 2 x^{2} y^{\prime \prime }+x y^{\prime }-\left (x +1\right ) y&=0 \\ \end{align*}

Series expansion around \(x=0\).

9401

5

\begin{align*} x^{2} y^{\prime \prime }+x y^{\prime }+x^{2} y&=0 \\ \end{align*}

Series expansion around \(x=0\).

9402

6

\begin{align*} y^{\prime \prime }+\frac {y^{\prime }}{x^{2}}-\frac {y}{x^{3}}&=0 \\ \end{align*}

Series expansion around \(x=0\).

9403

8

\begin{align*} x^{2} y^{\prime \prime }+\left (3 x -1\right ) y^{\prime }+y&=0 \\ \end{align*}

Series expansion around \(x=0\).

1.20 Chapter 4. Power Series Solutions and Special Functions. Section 4.5. More on Regular Singular Points. Page 183

Table 1.39: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

9404

1

\begin{align*} x^{2} y^{\prime \prime }-3 x y^{\prime }+\left (4 x +4\right ) y&=0 \\ \end{align*}

Series expansion around \(x=0\).

9405

2

\begin{align*} 4 x^{2} y^{\prime \prime }-8 x^{2} y^{\prime }+\left (4 x^{2}+1\right ) y&=0 \\ \end{align*}

Series expansion around \(x=0\).

9406

3(a)

\begin{align*} x y^{\prime \prime }+2 y^{\prime }+y x&=0 \\ \end{align*}

Series expansion around \(x=0\).

9407

3(b)

\begin{align*} x^{2} y^{\prime \prime }-x^{2} y^{\prime }+\left (x^{2}-2\right ) y&=0 \\ \end{align*}

Series expansion around \(x=0\).

9408

3(c)

\begin{align*} x y^{\prime \prime }-y^{\prime }+4 x^{3} y&=0 \\ \end{align*}

Series expansion around \(x=0\).

9409

4

\begin{align*} \left (x -1\right )^{2} y^{\prime \prime }-3 \left (x -1\right ) y^{\prime }+2 y&=0 \\ \end{align*}

Series expansion around \(x=1\).

9410

5

\begin{align*} 3 \left (x +1\right )^{2} y^{\prime \prime }-\left (x +1\right ) y^{\prime }-y&=0 \\ \end{align*}

Series expansion around \(x=-1\).

9411

6

\begin{align*} x^{2} y^{\prime \prime }+x y^{\prime }+\left (x^{2}-1\right ) y&=0 \\ \end{align*}

Series expansion around \(x=0\).

9412

7

\begin{align*} x^{2} y^{\prime \prime }+x y^{\prime }+\left (x^{2}-\frac {1}{4}\right ) y&=0 \\ \end{align*}

Series expansion around \(x=0\).

1.21 Chapter 4. Power Series Solutions and Special Functions. Section 4.6. Gauss Hypergeometric Equation. Page 187

Table 1.41: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

9413

2(a)

\begin{align*} x \left (1-x \right ) y^{\prime \prime }+\left (\frac {3}{2}-2 x \right ) y^{\prime }+2 y&=0 \\ \end{align*}

Series expansion around \(x=0\).

9414

2(b)

\begin{align*} \left (2 x^{2}+2 x \right ) y^{\prime \prime }+\left (1+5 x \right ) y^{\prime }+y&=0 \\ \end{align*}

Series expansion around \(x=0\).

9415

2(x)

\begin{align*} \left (x^{2}-1\right ) y^{\prime \prime }+\left (5 x +4\right ) y^{\prime }+4 y&=0 \\ \end{align*}

Series expansion around \(x=-1\).

9416

2(d)

\begin{align*} \left (x^{2}-x -6\right ) y^{\prime \prime }+\left (5+3 x \right ) y^{\prime }+y&=0 \\ \end{align*}

Series expansion around \(x=3\).

9417

3

\begin{align*} \left (-x^{2}+1\right ) y^{\prime \prime }-x y^{\prime }+p^{2} y&=0 \\ \end{align*}

Series expansion around \(x=1\).

9418

5

\begin{align*} \left (1-{\mathrm e}^{x}\right ) y^{\prime \prime }+\frac {y^{\prime }}{2}+y \,{\mathrm e}^{x}&=0 \\ \end{align*}

Series expansion around \(x=0\).

1.22 Chapter 4. Power Series Solutions and Special Functions. Problems for review and discovert. (A) Drill Exercises . Page 194

Table 1.43: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

9419

1(a)

\begin{align*} y^{\prime \prime }+2 y x&=x^{2} \\ \end{align*}

Series expansion around \(x=0\).

9420

1(b)

\begin{align*} y^{\prime \prime }-x y^{\prime }+y&=x \\ \end{align*}

Series expansion around \(x=0\).

9421

1(c)

\begin{align*} y^{\prime \prime }+y^{\prime }+y&=x^{3}-x \\ \end{align*}

Series expansion around \(x=0\).

9422

1(d)

\begin{align*} 2 y^{\prime \prime }+x y^{\prime }+y&=0 \\ \end{align*}

Series expansion around \(x=0\).

9423

1(e)

\begin{align*} \left (x^{2}+4\right ) y^{\prime \prime }-y^{\prime }+y&=0 \\ \end{align*}

Series expansion around \(x=0\).

9424

1(f)

\begin{align*} y-x y^{\prime }+\left (x^{2}+1\right ) y^{\prime \prime }&=0 \\ \end{align*}

Series expansion around \(x=0\).

9425

1(g)

\begin{align*} y^{\prime \prime }-\left (x +1\right ) y^{\prime }-y x&=0 \\ \end{align*}

Series expansion around \(x=0\).

9426

1(h)

\begin{align*} \left (x -1\right ) y^{\prime \prime }+\left (x +1\right ) y^{\prime }+y&=0 \\ \end{align*}

Series expansion around \(x=0\).

9427

2(a)

\begin{align*} x^{2} \left (x^{2}+1\right ) y^{\prime \prime }-x y^{\prime }+\left (x +2\right ) y&=0 \\ \end{align*}

Series expansion around \(x=0\).

9428

2(b)

\begin{align*} x^{2} y^{\prime \prime }+x y^{\prime }+\left (x +1\right ) y&=0 \\ \end{align*}

Series expansion around \(x=0\).

9429

2(c)

\begin{align*} x y^{\prime \prime }-4 y^{\prime }+y x&=0 \\ \end{align*}

Series expansion around \(x=0\).

9430

2(d)

\begin{align*} 4 x^{2} y^{\prime \prime }+4 x^{2} y^{\prime }+2 y&=0 \\ \end{align*}

Series expansion around \(x=0\).

9431

2(e)

\begin{align*} 2 x y^{\prime \prime }+\left (1-x \right ) y^{\prime }+y&=0 \\ \end{align*}

Series expansion around \(x=0\).

9432

2(f)

\begin{align*} x y^{\prime \prime }-\left (x -1\right ) y^{\prime }+2 y&=0 \\ \end{align*}

Series expansion around \(x=0\).

9433

2(g)

\begin{align*} x^{2} y^{\prime \prime }+x \left (1-x \right ) y^{\prime }+y&=0 \\ \end{align*}

Series expansion around \(x=0\).

9434

2(h)

\begin{align*} x y^{\prime \prime }+\left (x +1\right ) y^{\prime }+y&=0 \\ \end{align*}

Series expansion around \(x=0\).

9435

3(a)

\begin{align*} x^{3} y^{\prime \prime \prime }+2 x^{2} y^{\prime \prime }+\left (x^{2}+x \right ) y^{\prime }+y x&=0 \\ \end{align*}

Series expansion around \(x=0\).

9436

3(b)

\begin{align*} x^{3} y^{\prime \prime \prime }+x^{2} y^{\prime \prime }-3 x y^{\prime }+\left (x -1\right ) y&=0 \\ \end{align*}

Series expansion around \(x=0\).

9437

3(c)

\begin{align*} x^{3} y^{\prime \prime \prime }-2 x^{2} y^{\prime \prime }+\left (x^{2}+2 x \right ) y^{\prime }-y x&=0 \\ \end{align*}

Series expansion around \(x=0\).

9438

3(d)

\begin{align*} x^{3} y^{\prime \prime \prime }+\left (2 x^{3}-x^{2}\right ) y^{\prime \prime }-x y^{\prime }+y&=0 \\ \end{align*}

Series expansion around \(x=0\).

1.23 Chapter 4. Power Series Solutions and Special Functions. Problems for review and discovert. (B) Challenge Problems . Page 194

Table 1.45: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

9439

1(a)

\begin{align*} x^{3} y^{\prime \prime }+x^{2} y^{\prime }+y&=0 \\ \end{align*}

Series expansion around \(x=\infty \).

9440

1(b)

\begin{align*} 9 \left (x -2\right )^{2} \left (x -3\right ) y^{\prime \prime }+6 x \left (x -2\right ) y^{\prime }+16 y&=0 \\ \end{align*}

Series expansion around \(x=\infty \).

9441

1(c)

\begin{align*} p \left (1+p \right ) y-2 x y^{\prime }+\left (-x^{2}+1\right ) y^{\prime \prime }&=0 \\ \end{align*}

Series expansion around \(x=\infty \).

1.24 Chapter 7. Laplace Transforms. Section 7.5 The Unit Step and Impulse Functions. Page 303

Table 1.47: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

9442

1(a)

\begin{align*} y^{\prime \prime }+5 y^{\prime }+6 y&=5 \,{\mathrm e}^{3 t} \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

Using Laplace transform method.

9443

1(b)

\begin{align*} y^{\prime \prime }+y^{\prime }-6 y&=t \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

Using Laplace transform method.

9444

1(c)

\begin{align*} y^{\prime \prime }-y&=t^{2} \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

Using Laplace transform method.

9445

7(a)

\begin{align*} L i^{\prime }+R i&=E_{0} \operatorname {Heaviside}\left (t \right ) \\ i \left (0\right ) &= 0 \\ \end{align*}

Using Laplace transform method.

9446

7(b)

\begin{align*} L i^{\prime }+R i&=E_{0} \delta \left (t \right ) \\ i \left (0\right ) &= 0 \\ \end{align*}

Using Laplace transform method.

9447

7(c)

\begin{align*} L i^{\prime }+R i&=E_{0} \sin \left (\omega t \right ) \\ i \left (0\right ) &= 0 \\ \end{align*}

Using Laplace transform method.

1.25 Chapter 7. Laplace Transforms. Section 7.5 Problesm for review and discovery. Section A, Drill exercises. Page 309

Table 1.49: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

9448

3(a)

\begin{align*} y^{\prime \prime }+3 y^{\prime }-5 y&=1 \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 1 \\ \end{align*}

Using Laplace transform method.

9449

3(b)

\begin{align*} y^{\prime \prime }+3 y^{\prime }-2 y&=-6 \,{\mathrm e}^{\pi -t} \\ y \left (\pi \right ) &= 1 \\ y^{\prime }\left (\pi \right ) &= 4 \\ \end{align*}

Using Laplace transform method.

9450

3(c)

\begin{align*} y^{\prime \prime }+2 y^{\prime }-y&=t \,{\mathrm e}^{-t} \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 1 \\ \end{align*}

Using Laplace transform method.

9451

3(d)

\begin{align*} y^{\prime \prime }-y^{\prime }+y&=3 \,{\mathrm e}^{-t} \\ y \left (0\right ) &= 3 \\ y^{\prime }\left (0\right ) &= 2 \\ \end{align*}

Using Laplace transform method.

9452

4(a)

\begin{align*} y^{\prime \prime }-5 y^{\prime }+4 y&=0 \\ \end{align*}

Using Laplace transform method.

9453

4(b)

\begin{align*} y^{\prime \prime }+3 y^{\prime }+3 y&=2 \\ \end{align*}

Using Laplace transform method.

9454

4(c)

\begin{align*} y^{\prime \prime }+y^{\prime }+2 y&=t \\ \end{align*}

Using Laplace transform method.

9455

4(d)

\begin{align*} y^{\prime \prime }-7 y^{\prime }+12 y&={\mathrm e}^{2 t} t \\ \end{align*}

Using Laplace transform method.

1.26 Chapter 7. Laplace Transforms. Section 7.5 Problesm for review and discovery. Section B, Challenge Problems. Page 310

Table 1.51: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

9456

3

\begin{align*} i^{\prime \prime }+2 i^{\prime }+3 i&=\left \{\begin {array}{cc} 30 & 0<t <2 \pi \\ 0 & 2 \pi \le t \le 5 \pi \\ 10 & 5 \pi <t <\infty \end {array}\right . \\ i \left (0\right ) &= 8 \\ i^{\prime }\left (0\right ) &= 0 \\ \end{align*}

Using Laplace transform method.

1.27 Chapter 10. Systems of First-Order Equations. Section 10.2 Linear Systems. Page 380

Table 1.53: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

9457

2(a)

\begin{align*} x^{\prime }\left (t \right )&=x \left (t \right )+3 y \left (t \right ) \\ y^{\prime }\left (t \right )&=3 x \left (t \right )+y \left (t \right ) \\ \end{align*}

9458

2(c)

\begin{align*} x^{\prime }\left (t \right )&=x \left (t \right )+3 y \left (t \right ) \\ y^{\prime }\left (t \right )&=3 x \left (t \right )+y \left (t \right ) \\ \end{align*}

With initial conditions

\begin{align*} x \left (0\right ) &= 5 \\ y \left (0\right ) &= 1 \\ \end{align*}

9459

3(a)

\begin{align*} x^{\prime }\left (t \right )&=x \left (t \right )+2 y \left (t \right ) \\ y^{\prime }\left (t \right )&=3 x \left (t \right )+2 y \left (t \right ) \\ \end{align*}

9460

3(c)

\begin{align*} x^{\prime }\left (t \right )&=x \left (t \right )+2 y \left (t \right )+t -1 \\ y^{\prime }\left (t \right )&=3 x \left (t \right )+2 y \left (t \right )-5 t -2 \\ \end{align*}

9461

5

\begin{align*} x^{\prime }\left (t \right )&=x \left (t \right )+y \left (t \right ) \\ y^{\prime }\left (t \right )&=y \left (t \right ) \\ \end{align*}

9462

6(a)

\begin{align*} x^{\prime }\left (t \right )&=x \left (t \right ) \\ y^{\prime }\left (t \right )&=y \left (t \right ) \\ \end{align*}

1.28 Chapter 10. Systems of First-Order Equations. Section 10.3 Homogeneous Linear Systems with Constant Coefficients. Page 387

Table 1.55: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

9463

1(a)

\begin{align*} x^{\prime }\left (t \right )&=-3 x \left (t \right )+4 y \left (t \right ) \\ y^{\prime }\left (t \right )&=-2 x \left (t \right )+3 y \left (t \right ) \\ \end{align*}

9464

1(b)

\begin{align*} x^{\prime }\left (t \right )&=4 x \left (t \right )-2 y \left (t \right ) \\ y^{\prime }\left (t \right )&=5 x \left (t \right )+2 y \left (t \right ) \\ \end{align*}

9465

1(c)

\begin{align*} x^{\prime }\left (t \right )&=5 x \left (t \right )+4 y \left (t \right ) \\ y^{\prime }\left (t \right )&=-x \left (t \right )+y \left (t \right ) \\ \end{align*}

9466

1(d)

\begin{align*} x^{\prime }\left (t \right )&=4 x \left (t \right )-3 y \left (t \right ) \\ y^{\prime }\left (t \right )&=8 x \left (t \right )-6 y \left (t \right ) \\ \end{align*}

9467

1(e)

\begin{align*} x^{\prime }\left (t \right )&=2 x \left (t \right ) \\ y^{\prime }\left (t \right )&=3 y \left (t \right ) \\ \end{align*}

9468

1(f)

\begin{align*} x^{\prime }\left (t \right )&=-4 x \left (t \right )-y \left (t \right ) \\ y^{\prime }\left (t \right )&=x \left (t \right )-2 y \left (t \right ) \\ \end{align*}

9469

1(g)

\begin{align*} x^{\prime }\left (t \right )&=7 x \left (t \right )+6 y \left (t \right ) \\ y^{\prime }\left (t \right )&=2 x \left (t \right )+6 y \left (t \right ) \\ \end{align*}

9470

1(h)

\begin{align*} x^{\prime }\left (t \right )&=x \left (t \right )-2 y \left (t \right ) \\ y^{\prime }\left (t \right )&=4 x \left (t \right )+5 y \left (t \right ) \\ \end{align*}

9471

5(b)

\begin{align*} x^{\prime }\left (t \right )&=x \left (t \right )+y \left (t \right )-5 t +2 \\ y^{\prime }\left (t \right )&=4 x \left (t \right )-2 y \left (t \right )-8 t -8 \\ \end{align*}

1.29 Chapter 10. Systems of First-Order Equations. Section A. Drill exercises. Page 400

Table 1.57: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

9472

2(a)

\begin{align*} x^{\prime }\left (t \right )&=3 x \left (t \right )-4 y \left (t \right ) \\ y^{\prime }\left (t \right )&=4 x \left (t \right )-7 y \left (t \right ) \\ \end{align*}

9473

2(b)

\begin{align*} x^{\prime }\left (t \right )&=x \left (t \right )+y \left (t \right ) \\ y^{\prime }\left (t \right )&=4 x \left (t \right )+y \left (t \right ) \\ \end{align*}

9474

2(c)

\begin{align*} x^{\prime }\left (t \right )&=-3 x \left (t \right )+\sqrt {2}\, y \left (t \right ) \\ y^{\prime }\left (t \right )&=\sqrt {2}\, x \left (t \right )-2 y \left (t \right ) \\ \end{align*}

9475

2(d)

\begin{align*} x^{\prime }\left (t \right )&=5 x \left (t \right )+3 y \left (t \right ) \\ y^{\prime }\left (t \right )&=-6 x \left (t \right )-4 y \left (t \right ) \\ \end{align*}

9476

3(a)

\begin{align*} x^{\prime }\left (t \right )&=3 x \left (t \right )+2 y \left (t \right ) \\ y^{\prime }\left (t \right )&=-2 x \left (t \right )-y \left (t \right ) \\ \end{align*}

9477

3(b)

\begin{align*} x^{\prime }\left (t \right )&=x \left (t \right )+y \left (t \right ) \\ y^{\prime }\left (t \right )&=-x \left (t \right )+y \left (t \right ) \\ \end{align*}

9478

3(c)

\begin{align*} x^{\prime }\left (t \right )&=3 x \left (t \right )-5 y \left (t \right ) \\ y^{\prime }\left (t \right )&=-x \left (t \right )+2 y \left (t \right ) \\ \end{align*}

9479

3(d)

\begin{align*} x^{\prime }\left (t \right )&=x \left (t \right )+2 y \left (t \right ) \\ y^{\prime }\left (t \right )&=-4 x \left (t \right )+y \left (t \right ) \\ \end{align*}

9480

3(e)

\begin{align*} x^{\prime }\left (t \right )&=3 x \left (t \right )+2 y \left (t \right )+z \left (t \right ) \\ y^{\prime }\left (t \right )&=-2 x \left (t \right )-y \left (t \right )+3 z \left (t \right ) \\ z^{\prime }\left (t \right )&=x \left (t \right )+y \left (t \right )+z \left (t \right ) \\ \end{align*}

9481

3(f)

\begin{align*} x^{\prime }\left (t \right )&=-x \left (t \right )+y \left (t \right )-z \left (t \right ) \\ y^{\prime }\left (t \right )&=2 x \left (t \right )-y \left (t \right )-4 z \left (t \right ) \\ z^{\prime }\left (t \right )&=3 x \left (t \right )-y \left (t \right )+z \left (t \right ) \\ \end{align*}

9482

4(a)

\begin{align*} x^{\prime }\left (t \right )&=x \left (t \right )+2 y \left (t \right )-4 t +1 \\ y^{\prime }\left (t \right )&=-x \left (t \right )+2 y \left (t \right )+3 t +4 \\ \end{align*}

9483

4(b)

\begin{align*} x^{\prime }\left (t \right )&=-2 x \left (t \right )+y \left (t \right )-t +3 \\ y^{\prime }\left (t \right )&=x \left (t \right )+4 y \left (t \right )+t -2 \\ \end{align*}

9484

4(c)

\begin{align*} x^{\prime }\left (t \right )&=-4 x \left (t \right )+y \left (t \right )-t +3 \\ y^{\prime }\left (t \right )&=-x \left (t \right )-5 y \left (t \right )+t +1 \\ \end{align*}

1.30 Chapter 10. Systems of First-Order Equations. Section B. Challenge Problems. Page 401

Table 1.59: Lookup table

ID

problem

ODE

Solved?

Maple

Mma

Sympy

9485

1

\begin{align*} x^{\prime }\left (t \right )&=x \left (t \right ) y \left (t \right )+1 \\ y^{\prime }\left (t \right )&=-x \left (t \right )+y \left (t \right ) \\ \end{align*}

With initial conditions

\begin{align*} x \left (0\right ) &= 2 \\ y \left (0\right ) &= -1 \\ \end{align*}

9486

2

\begin{align*} x^{\prime }\left (t \right )&=1+y \left (t \right ) t \\ y^{\prime }\left (t \right )&=-x \left (t \right ) t +y \left (t \right ) \\ \end{align*}

With initial conditions

\begin{align*} x \left (0\right ) &= 0 \\ y \left (0\right ) &= -1 \\ \end{align*}