2.2.87 Problems 8601 to 8700

Table 2.191: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

Maple

Mma

Sympy

time(sec)

8601

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

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

0.971

8602

\begin{align*} \left (2 x +1\right )^{2} y^{\prime \prime }+2 \left (2 x +1\right ) y^{\prime }+16 \left (x +1\right ) x y&=0 \\ \end{align*}

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

0.782

8603

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

Series expansion around \(x=0\).

[_Bessel]

0.981

8604

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

Series expansion around \(x=0\).

[_Lienard]

3.291

8605

\begin{align*} 9 x^{2} y^{\prime \prime }+9 x y^{\prime }+\left (36 x^{4}-16\right ) y&=0 \\ \end{align*}

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

0.933

8606

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

Series expansion around \(x=0\).

[[_Emden, _Fowler]]

0.391

8607

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

Series expansion around \(x=0\).

[[_Emden, _Fowler]]

0.938

8608

\begin{align*} x y^{\prime \prime }+y^{\prime }+36 y&=0 \\ \end{align*}

Series expansion around \(x=0\).

[[_Emden, _Fowler]]

0.940

8609

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

Series expansion around \(x=0\).

[[_Emden, _Fowler]]

0.464

8610

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

Series expansion around \(x=0\).

[[_Emden, _Fowler]]

0.441

8611

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

Series expansion around \(x=0\).

[_Lienard]

3.527

8612

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

Series expansion around \(x=0\).

[[_2nd_order, _missing_x]]

0.406

8613

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

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.071

8614

\begin{align*} \left (x -1\right )^{2} y^{\prime \prime }-\left (x -1\right ) y^{\prime }-35 y&=0 \\ \end{align*}

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

0.738

8615

\begin{align*} 16 \left (x +1\right )^{2} y^{\prime \prime }+3 y&=0 \\ \end{align*}

Series expansion around \(x=0\).

[[_Emden, _Fowler]]

0.645

8616

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

Series expansion around \(x=0\).

[_Bessel]

0.977

8617

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

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

1.077

8618

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

Series expansion around \(x=0\).

[_Laguerre]

1.149

8619

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

Series expansion around \(x=0\).

[[_Emden, _Fowler]]

0.990

8620

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

Series expansion around \(x=0\).

[[_Emden, _Fowler]]

3.277

8621

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

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

0.755

8622

\begin{align*} y^{\prime }+\frac {26 y}{5}&=\frac {97 \sin \left (2 t \right )}{5} \\ y \left (0\right ) &= 0 \\ \end{align*}

Using Laplace transform method.

[[_linear, ‘class A‘]]

0.883

8623

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

Using Laplace transform method.

[_quadrature]

0.283

8624

\begin{align*} y^{\prime \prime }-y^{\prime }-6 y&=0 \\ y \left (0\right ) &= 11 \\ y^{\prime }\left (0\right ) &= 28 \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _missing_x]]

0.281

8625

\begin{align*} y^{\prime \prime }+9 y&=10 \,{\mathrm e}^{-t} \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _with_linear_symmetries]]

0.377

8626

\begin{align*} y^{\prime \prime }-\frac {y}{4}&=0 \\ y \left (0\right ) &= 12 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _missing_x]]

0.264

8627

\begin{align*} y^{\prime \prime }-6 y^{\prime }+5 y&=29 \cos \left (2 t \right ) \\ y \left (0\right ) &= {\frac {16}{5}} \\ y^{\prime }\left (0\right ) &= {\frac {31}{5}} \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

0.414

8628

\begin{align*} y^{\prime \prime }+7 y^{\prime }+12 y&=21 \,{\mathrm e}^{3 t} \\ y \left (0\right ) &= {\frac {7}{2}} \\ y^{\prime }\left (0\right ) &= -10 \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _with_linear_symmetries]]

0.366

8629

\begin{align*} y^{\prime \prime }-4 y^{\prime }+4 y&=0 \\ y \left (0\right ) &= {\frac {81}{10}} \\ y^{\prime }\left (0\right ) &= {\frac {39}{10}} \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _missing_x]]

0.280

8630

\begin{align*} y^{\prime \prime }-4 y^{\prime }+3 y&=6 t -8 \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _with_linear_symmetries]]

0.339

8631

\begin{align*} y^{\prime \prime }+\frac {y}{25}&=\frac {t^{2}}{50} \\ y \left (0\right ) &= -25 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _with_linear_symmetries]]

0.291

8632

\begin{align*} y^{\prime \prime }+3 y^{\prime }+\frac {9 y}{4}&=9 t^{3}+64 \\ y \left (0\right ) &= 1 \\ y^{\prime }\left (0\right ) &= {\frac {63}{2}} \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

0.427

8633

\begin{align*} y^{\prime \prime }-2 y^{\prime }-3 y&=0 \\ y \left (4\right ) &= -3 \\ y^{\prime }\left (4\right ) &= -17 \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _missing_x]]

0.402

8634

\begin{align*} y^{\prime }-6 y&=0 \\ y \left (-1\right ) &= 4 \\ \end{align*}

Using Laplace transform method.

[_quadrature]

0.277

8635

\begin{align*} y^{\prime \prime }+2 y^{\prime }+5 y&=50 t -100 \\ y \left (2\right ) &= -4 \\ y^{\prime }\left (2\right ) &= 14 \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _with_linear_symmetries]]

0.542

8636

\begin{align*} y^{\prime \prime }+3 y^{\prime }-4 y&=6 \,{\mathrm e}^{2 t -3} \\ y \left (\frac {3}{2}\right ) &= 4 \\ y^{\prime }\left (\frac {3}{2}\right ) &= 5 \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _with_linear_symmetries]]

0.526

8637

\begin{align*} 9 y^{\prime \prime }-6 y^{\prime }+y&=0 \\ y \left (0\right ) &= 3 \\ y^{\prime }\left (0\right ) &= 1 \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _missing_x]]

0.194

8638

\begin{align*} y^{\prime \prime }+6 y^{\prime }+8 y&={\mathrm e}^{-3 t}-{\mathrm e}^{-5 t} \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

0.376

8639

\begin{align*} y^{\prime \prime }+10 y^{\prime }+24 y&=144 t^{2} \\ y \left (0\right ) &= {\frac {19}{12}} \\ y^{\prime }\left (0\right ) &= -5 \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _with_linear_symmetries]]

0.331

8640

\begin{align*} y^{\prime \prime }+9 y&=\left \{\begin {array}{cc} 8 \sin \left (t \right ) & 0<t <\pi \\ 0 & \pi <t \end {array}\right . \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 4 \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

2.609

8641

\begin{align*} y^{\prime \prime }+3 y^{\prime }+2 y&=\left \{\begin {array}{cc} 4 t & 0<t <1 \\ 8 & 1<t \end {array}\right . \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

3.275

8642

\begin{align*} y^{\prime \prime }+y^{\prime }-2 y&=\left \{\begin {array}{cc} 3 \sin \left (t \right )-\cos \left (t \right ) & 0<t <2 \pi \\ 3 \sin \left (2 t \right )-\cos \left (2 t \right ) & 2 \pi <t \end {array}\right . \\ y \left (0\right ) &= 1 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

3.980

8643

\begin{align*} y^{\prime \prime }+3 y^{\prime }+2 y&=\left \{\begin {array}{cc} 1 & 0<t <1 \\ 0 & 1<t \end {array}\right . \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

4.148

8644

\begin{align*} y^{\prime \prime }+y&=\left \{\begin {array}{cc} t & 0<t <1 \\ 0 & 1<t \end {array}\right . \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

2.662

8645

\begin{align*} y^{\prime \prime }+2 y^{\prime }+5 y&=\left \{\begin {array}{cc} 10 \sin \left (t \right ) & 0<t <2 \pi \\ 0 & 2 \pi <t \end {array}\right . \\ y \left (\pi \right ) &= 1 \\ y^{\prime }\left (\pi \right ) &= 2 \,{\mathrm e}^{-\pi }-2 \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

4.181

8646

\begin{align*} y^{\prime \prime }+4 y&=\left \{\begin {array}{cc} 8 t^{2} & 0<t <5 \\ 0 & 5<t \end {array}\right . \\ y \left (1\right ) &= 1+\cos \left (2\right ) \\ y^{\prime }\left (1\right ) &= 4-2 \sin \left (2\right ) \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

3.201

8647

\begin{align*} y^{\prime \prime }+4 y&=\delta \left (t -\pi \right ) \\ y \left (0\right ) &= 8 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

1.126

8648

\begin{align*} y^{\prime \prime }+16 y&=4 \delta \left (t -3 \pi \right ) \\ y \left (0\right ) &= 2 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

1.297

8649

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

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

1.170

8650

\begin{align*} y^{\prime \prime }+4 y^{\prime }+5 y&=\delta \left (t -1\right ) \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 3 \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

1.870

8651

\begin{align*} 4 y^{\prime \prime }+24 y^{\prime }+37 y&=17 \,{\mathrm e}^{-t}+\delta \left (t -\frac {1}{2}\right ) \\ y \left (0\right ) &= 1 \\ y^{\prime }\left (0\right ) &= 1 \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

3.007

8652

\begin{align*} y^{\prime \prime }+3 y^{\prime }+2 y&=10 \sin \left (t \right )+10 \delta \left (t -1\right ) \\ y \left (0\right ) &= 1 \\ y^{\prime }\left (0\right ) &= -1 \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

2.187

8653

\begin{align*} y^{\prime \prime }+4 y^{\prime }+5 y&=\left (1-\operatorname {Heaviside}\left (t -10\right )\right ) {\mathrm e}^{t}-{\mathrm e}^{10} \delta \left (t -10\right ) \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 1 \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

5.219

8654

\begin{align*} y^{\prime \prime }+5 y^{\prime }+6 y&=\delta \left (t -\frac {\pi }{2}\right )+\cos \left (t \right ) \operatorname {Heaviside}\left (t -\pi \right ) \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

3.353

8655

\begin{align*} y^{\prime \prime }+5 y^{\prime }+6 y&=\operatorname {Heaviside}\left (t -1\right )+\delta \left (t -2\right ) \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 1 \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

4.213

8656

\begin{align*} y^{\prime \prime }+2 y^{\prime }+5 y&=25 t -100 \delta \left (t -\pi \right ) \\ y \left (0\right ) &= -2 \\ y^{\prime }\left (0\right ) &= 5 \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

1.271

8657

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

[_separable]

8.756

8658

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

[_separable]

3.638

8659

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

[_separable]

4.266

8660

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

[_separable]

8.917

8661

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

[_separable]

3.028

8662

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

[_separable]

12.274

8663

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

[_separable]

5.004

8664

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

[_quadrature]

3.321

8665

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

[_separable]

7.943

8666

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

[_separable]

7.037

8667

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

[_separable]

6.256

8668

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

[_quadrature]

2.231

8669

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

[_separable]

5.652

8670

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

[_separable]

6.725

8671

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

[_separable]

9.253

8672

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

[_separable]

3.621

8673

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

[_separable]

29.169

8674

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

[_separable]

31.009

8675

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

[_separable]

5.548

8676

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

[_separable]

4.543

8677

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

[_separable]

3.388

8678

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

[_separable]

25.947

8679

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

[_separable]

8.479

8680

\begin{align*} z^{\prime }&=10^{x +z} \\ \end{align*}

[_separable]

4.438

8681

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

[_quadrature]

0.417

8682

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

[[_homogeneous, ‘class C‘], _dAlembert]

2.766

8683

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

[[_linear, ‘class A‘]]

2.156

8684

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

[[_homogeneous, ‘class C‘], [_Abel, ‘2nd type‘, ‘class C‘], _dAlembert]

35.287

8685

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

[[_linear, ‘class A‘]]

2.217

8686

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

[[_homogeneous, ‘class C‘], _dAlembert]

2.865

8687

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

[[_homogeneous, ‘class C‘], _dAlembert]

5.694

8688

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

[[_homogeneous, ‘class C‘], _dAlembert]

8.144

8689

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

[[_homogeneous, ‘class C‘], _Riccati]

6.703

8690

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

[_separable]

7.779

8691

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

[_separable]

5.412

8692

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

[[_homogeneous, ‘class A‘], _rational, [_Abel, ‘2nd type‘, ‘class A‘]]

18.381

8693

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

[_separable]

5.259

8694

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

[_rational, _Bernoulli]

4.306

8695

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

[[_homogeneous, ‘class A‘], _rational, [_Abel, ‘2nd type‘, ‘class B‘]]

26.126

8696

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

[[_homogeneous, ‘class A‘], _rational, _dAlembert]

41.555

8697

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

[[_homogeneous, ‘class A‘], _dAlembert]

13.326

8698

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

[[_homogeneous, ‘class A‘], _dAlembert]

9.282

8699

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

[[_homogeneous, ‘class A‘], _dAlembert]

13.540

8700

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

[[_homogeneous, ‘class A‘], _dAlembert]

10.335