2.2.186 Problems 18501 to 18600

Table 2.389: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

Maple

Mma

Sympy

time(sec)

18501

\begin{align*} y^{\prime }&=\frac {3 x^{2}+1}{12 y^{2}-12 y} \\ y \left (0\right ) &= 2 \\ \end{align*}

[_separable]

6.019

18502

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

[_separable]

1.956

18503

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

[_separable]

2.936

18504

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

[_separable]

3.350

18505

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

[_separable]

3.332

18506

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

[_separable]

3.624

18507

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

[_separable]

3.710

18508

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

[_separable]

4.916

18509

\begin{align*} y^{\prime }&=\frac {a y+b}{d +c y} \\ \end{align*}

[_quadrature]

1.944

18510

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

[[_linear, ‘class A‘]]

2.344

18511

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

[[_linear, ‘class A‘]]

2.616

18512

\begin{align*} y+y^{\prime }&=1+t \,{\mathrm e}^{-t} \\ \end{align*}

[[_linear, ‘class A‘]]

2.708

18513

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

[_linear]

2.350

18514

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

[[_linear, ‘class A‘]]

1.398

18515

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

[_linear]

1.969

18516

\begin{align*} 2 t y+y^{\prime }&=16 t \,{\mathrm e}^{-t^{2}} \\ \end{align*}

[_linear]

3.578

18517

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

[_linear]

3.213

18518

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

[[_linear, ‘class A‘]]

1.161

18519

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

[_linear]

2.243

18520

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

[[_linear, ‘class A‘]]

2.016

18521

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

[[_linear, ‘class A‘]]

1.790

18522

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

[[_linear, ‘class A‘]]

1.867

18523

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

[[_linear, ‘class A‘]]

2.799

18524

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

[_linear]

2.428

18525

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

[_linear]

2.193

18526

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

[[_linear, ‘class A‘]]

1.465

18527

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

[_linear]

2.109

18528

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

[_linear]

2.180

18529

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

[_linear]

1.774

18530

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

[[_linear, ‘class A‘]]

1.972

18531

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

[[_linear, ‘class A‘]]

1.500

18532

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

[[_linear, ‘class A‘]]

1.771

18533

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

[_linear]

3.117

18534

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

[_linear]

2.201

18535

\begin{align*} y \cos \left (t \right )+\sin \left (t \right ) y^{\prime }&={\mathrm e}^{t} \\ y \left (1\right ) &= a \\ \end{align*}

[_linear]

22.653

18536

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

[[_linear, ‘class A‘]]

2.290

18537

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

[[_linear, ‘class A‘]]

1.230

18538

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

[[_linear, ‘class A‘]]

2.353

18539

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

[[_linear, ‘class A‘]]

2.102

18540

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

[[_linear, ‘class A‘]]

2.402

18541

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

[[_linear, ‘class A‘]]

2.596

18542

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

[_linear]

1.917

18543

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

[_linear]

1.825

18544

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

[[_linear, ‘class A‘]]

1.776

18545

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

[_linear]

3.771

18546

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

[_separable]

2.579

18547

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

[_linear]

2.310

18548

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

[_linear]

2.690

18549

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

[_linear]

2.533

18550

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

[_linear]

2.808

18551

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

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

11.856

18552

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

[‘y=_G(x,y’)‘]

16.949

18553

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

[‘y=_G(x,y’)‘]

27.565

18554

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

[‘y=_G(x,y’)‘]

15.624

18555

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

[_separable]

1.997

18556

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

[_separable]

3.245

18557

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

[_quadrature]

46.263

18558

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

[[_1st_order, _with_linear_symmetries], _Clairaut]

4.905

18559

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

[_separable]

6.471

18560

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

[_separable]

4.438

18561

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

[_quadrature]

7.205

18562

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

[_separable]

2.451

18563

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

[_separable]

3.506

18564

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

[_Bernoulli]

2.323

18565

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

[_Bernoulli]

2.356

18566

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

[[_linear, ‘class A‘]]

0.960

18567

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

[_separable]

1.787

18568

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

[_separable]

5.679

18569

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

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

15.009

18570

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

[_exact, _rational]

2.110

18571

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

[_separable]

0.143

18572

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

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

11.205

18573

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

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

16.618

18574

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

[_exact]

7.782

18575

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

[‘x=_G(y,y’)‘]

26.735

18576

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

[_exact]

4.971

18577

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

[_linear]

2.405

18578

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

[_separable]

3.478

18579

\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*}

[_separable]

6.180

18580

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

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

12.168

18581

\begin{align*} 9 x^{2}+y-1-\left (4 y-x \right ) y^{\prime }&=0 \\ y \left (1\right ) &= 0 \\ \end{align*}

[_exact, _rational, [_1st_order, ‘_with_symmetry_[F(x),G(x)]‘], [_Abel, ‘2nd type‘, ‘class A‘]]

3.225

18582

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

[_separable]

2.369

18583

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

[NONE]

11.817

18584

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

[[_1st_order, ‘_with_symmetry_[F(x)*G(y),0]‘]]

1.911

18585

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

[_separable]

2.934

18586

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

[[_homogeneous, ‘class D‘], _rational]

3.115

18587

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

[[_linear, ‘class A‘]]

2.182

18588

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

[_quadrature]

0.095

18589

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

[[_1st_order, _with_exponential_symmetries]]

2.919

18590

\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*}

[[_1st_order, ‘_with_symmetry_[F(x)*G(y),0]‘]]

4.512

18591

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

[_rational]

12.285

18592

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

[_rational]

2.489

18593

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

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

13.806

18594

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

[_separable]

2.595

18595

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

[_separable]

2.068

18596

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

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

9.785

18597

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

[_separable]

4.111

18598

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

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

20.675

18599

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

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

13.416

18600

\begin{align*} y^{\prime }&=\frac {4 y-7 x}{5 x -y} \\ \end{align*}

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

14.046