2.3.189 Problems 18801 to 18900

Table 2.951: Main lookup table. Sorted by time used to solve.

#

ID

ODE

Solved?

Maple

Mma

Sympy

time(sec)

18801

7015

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

3.497

18802

133

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

3.498

18803

4200

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

3.498

18804

12879

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

3.498

18805

6491

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

3.500

18806

7918

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

3.500

18807

23237

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

3.500

18808

1173

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

3.503

18809

5650

\begin{align*} 4 x {y^{\prime }}^{3}-6 y {y^{\prime }}^{2}-x +3 y&=0 \\ \end{align*}

3.503

18810

17644

\begin{align*} 2 x^{2} y^{\prime \prime }-7 x y^{\prime }+7 y&=0 \\ y \left (1\right ) &= -1 \\ y^{\prime }\left (1\right ) &= 1 \\ \end{align*}

3.503

18811

23057

\begin{align*} \left (1+\cos \left (\theta \right )\right ) r^{\prime }&=-r \sin \left (\theta \right ) \\ \end{align*}

3.503

18812

14168

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

3.504

18813

21767

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

3.504

18814

4742

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

3.506

18815

13987

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

3.507

18816

24379

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

3.507

18817

11891

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

3.508

18818

1853

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

Series expansion around \(x=0\).

3.509

18819

6249

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

3.509

18820

20563

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

3.509

18821

24262

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

3.509

18822

19257

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

3.510

18823

23174

\begin{align*} \left (x -1\right ) y^{\prime }-3 y&=\left (x -1\right )^{5} \\ y \left (-1\right ) &= 16 \\ \end{align*}

3.510

18824

9763

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

3.511

18825

2064

\begin{align*} x^{2} \left (x^{2}+1\right ) y^{\prime \prime }+x \left (10 x^{2}+3\right ) y^{\prime }-\left (-14 x^{2}+15\right ) y&=0 \\ \end{align*}

Series expansion around \(x=0\).

3.514

18826

2311

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

3.517

18827

13936

\begin{align*} y^{\prime \prime }-y^{\prime }+\left (a \,{\mathrm e}^{2 \lambda x} \left (b \,{\mathrm e}^{\lambda x}+c \right )^{n}+\frac {1}{4}-\frac {\lambda ^{2}}{4}\right ) y&=0 \\ \end{align*}

3.517

18828

16318

\begin{align*} 1+3 x^{2} y^{2}+\left (2 x^{3} y+6 y\right ) y^{\prime }&=0 \\ \end{align*}

3.517

18829

2780

\begin{align*} x_{1}^{\prime }&=x_{2}+f_{1} \left (t \right ) \\ x_{2}^{\prime }&=-x_{1}+f_{2} \left (t \right ) \\ \end{align*}

With initial conditions

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

3.520

18830

4288

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

3.520

18831

12925

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

3.521

18832

14904

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

3.521

18833

13235

\begin{align*} y^{\prime }&=-a n \,x^{n -1} y^{2}+c \,x^{m} \left (a \,x^{n}+b \right ) y-c \,x^{m} \\ \end{align*}

3.522

18834

13747

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

3.522

18835

19945

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

3.523

18836

188

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

3.524

18837

25455

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

3.524

18838

7708

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

3.525

18839

26864

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

3.525

18840

7741

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

3.526

18841

7861

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

3.527

18842

8611

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

Series expansion around \(x=0\).

3.527

18843

94

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

3.528

18844

19919

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

3.528

18845

6017

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

3.529

18846

24788

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

3.529

18847

7403

\begin{align*} y^{\prime }&=8 x^{3} {\mathrm e}^{-2 y} \\ y \left (1\right ) &= 0 \\ \end{align*}

3.530

18848

4104

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

3.531

18849

6313

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

3.532

18850

11809

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

3.532

18851

3968

\begin{align*} y^{\prime \prime }+4 y^{\prime }+5 y&=5 \operatorname {Heaviside}\left (-3+t \right ) \\ y \left (0\right ) &= 2 \\ y^{\prime }\left (0\right ) &= 1 \\ \end{align*}

Using Laplace transform method.

3.534

18852

4364

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

3.534

18853

14507

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

3.534

18854

19941

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

3.534

18855

1694

\begin{align*} x^{2} {\mathrm e}^{x^{2}+y} \left (2 x^{2}+3\right )+4 x +\left (x^{3} {\mathrm e}^{x^{2}+y}-12 y^{2}\right ) y^{\prime }&=0 \\ \end{align*}

3.535

18856

11387

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

3.535

18857

24289

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

3.537

18858

2834

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

3.538

18859

18106

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

3.538

18860

6323

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

3.539

18861

7398

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

3.539

18862

18515

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

3.539

18863

19387

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

3.539

18864

1178

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

3.540

18865

8443

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

3.540

18866

4998

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

3.541

18867

7447

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

3.542

18868

22137

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

3.542

18869

22976

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

3.543

18870

11572

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

3.544

18871

15322

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

Using Laplace transform method.

3.544

18872

24304

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

3.545

18873

4290

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

3.546

18874

4842

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

3.546

18875

8837

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

3.546

18876

20825

\begin{align*} 2 x y^{2}-3 y^{3}+\left (7-3 x y^{2}\right ) y^{\prime }&=0 \\ \end{align*}

3.546

18877

6460

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

3.548

18878

34

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

3.549

18879

12186

\begin{align*} y^{\prime }&=\frac {x \left (1+x^{2}+y^{2}\right )}{-y^{3}-x^{2} y-y+y^{6}+3 x^{2} y^{4}+3 y^{2} x^{4}+x^{6}} \\ \end{align*}

3.549

18880

17801

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

3.549

18881

22806

\begin{align*} Q^{\prime \prime }+k Q&=e \left (t \right ) \\ Q \left (0\right ) &= q_{0} \\ Q^{\prime }\left (0\right ) &= 0 \\ \end{align*}

3.549

18882

27519

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

3.549

18883

6163

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

3.550

18884

16919

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

Series expansion around \(x=0\).

3.550

18885

4292

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

3.552

18886

6007

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

3.553

18887

9730

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

3.553

18888

27354

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

3.553

18889

20109

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

3.554

18890

27539

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

3.554

18891

776

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

3.556

18892

6708

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

3.556

18893

17082

\begin{align*} y^{\prime }&={\mathrm e}^{2 y+10 t} \\ \end{align*}

3.556

18894

20830

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

3.556

18895

19076

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

3.558

18896

4660

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

3.560

18897

11611

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

3.560

18898

14488

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

3.560

18899

3451

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

3.561

18900

11398

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

3.563