2.2.203 Problems 20201 to 20300

Table 2.423: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

Maple

Mma

Sympy

time(sec)

20201

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

[[_2nd_order, _with_linear_symmetries], [_2nd_order, _linear, ‘_with_symmetry_[0,F(x)]‘]]

2.008

20202

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

[[_2nd_order, _with_linear_symmetries], [_2nd_order, _reducible, _mu_y_y1], [_2nd_order, _reducible, _mu_xy]]

0.719

20203

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

[[_2nd_order, _missing_x], [_2nd_order, _exact, _nonlinear], [_2nd_order, _reducible, _mu_x_y1], [_2nd_order, _reducible, _mu_xy]]

2.352

20204

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

[[_Emden, _Fowler], [_2nd_order, _linear, ‘_with_symmetry_[0,F(x)]‘]]

1.406

20205

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

system_of_ODEs

0.415

20206

\begin{align*} x^{\prime }-7 x+y&=0 \\ y^{\prime }-2 x-5 y&=0 \\ \end{align*}

system_of_ODEs

0.496

20207

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

system_of_ODEs

0.631

20208

\begin{align*} 4 x^{\prime }+9 y^{\prime }+44 x+49 y&=t \\ 3 x^{\prime }+7 y^{\prime }+34 x+38 y&={\mathrm e}^{t} \\ \end{align*}

system_of_ODEs

0.691

20209

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

system_of_ODEs

0.030

20210

\begin{align*} x^{\prime }+2 y^{\prime }-2 x+2 y&=3 \,{\mathrm e}^{t} \\ 3 x^{\prime }+y^{\prime }+2 x+y&=4 \,{\mathrm e}^{2 t} \\ \end{align*}

system_of_ODEs

0.625

20211

\begin{align*} 4 x^{\prime }+9 y^{\prime }+2 x+31 y&={\mathrm e}^{t} \\ 3 x^{\prime }+7 y^{\prime }+x+24 y&=3 \\ \end{align*}

system_of_ODEs

1.051

20212

\begin{align*} x^{\prime }+4 x+3 y&=t \\ y^{\prime }+2 x+5 y&={\mathrm e}^{t} \\ \end{align*}

system_of_ODEs

0.679

20213

\begin{align*} x^{\prime }&=n y-m z \\ y^{\prime }&=L z-m x \\ z^{\prime }&=m x-L y \\ \end{align*}

system_of_ODEs

40.952

20214

\begin{align*} x^{2} y^{\prime \prime }-5 x y^{\prime }+5 y&=\frac {1}{x} \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

7.020

20215

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

[[_2nd_order, _missing_y]]

0.414

20216

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

[_linear]

6.246

20217

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

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

6.723

20218

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

[_Bernoulli]

4.563

20219

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

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

21.783

20220

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

[[_1st_order, _with_linear_symmetries], _exact, _rational]

4.227

20221

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

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

21.372

20222

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

[_Bernoulli]

6.079

20223

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

[_linear]

4.457

20224

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

[_linear]

3.977

20225

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

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

12.747

20226

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

[_separable]

6.483

20227

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

[_separable]

2.961

20228

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

[_separable]

3.660

20229

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

[_separable]

4.696

20230

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

[_separable]

4.801

20231

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

[_separable]

2.997

20232

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

[_separable]

10.300

20233

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

[_separable]

6.821

20234

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

[_separable]

5.272

20235

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

[_separable]

5.539

20236

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

[_separable]

0.526

20237

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

[_separable]

35.875

20238

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

[_separable]

6.701

20239

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

[_separable]

5.245

20240

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

[_separable]

5.202

20241

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

[_separable]

4.983

20242

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

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

9.760

20243

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

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

10.839

20244

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

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

10.372

20245

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

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

12.934

20246

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

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

36.485

20247

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

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

18.635

20248

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

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

13.603

20249

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

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

10.421

20250

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

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

10.309

20251

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

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

19.349

20252

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

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

34.981

20253

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

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

10.483

20254

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

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

12.047

20255

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

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

21.786

20256

\begin{align*} \left (6 x -5 y+4\right ) y^{\prime }+y-2 x -1&=0 \\ \end{align*}

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

65.970

20257

\begin{align*} \left (x -3 y+4\right ) y^{\prime }+7 y-5 x&=0 \\ \end{align*}

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

43.992

20258

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

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

11.832

20259

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

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

11.245

20260

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

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

20.524

20261

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

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

15.559

20262

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

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

18.276

20263

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

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

24.910

20264

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

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

12.457

20265

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

[_linear]

3.625

20266

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

[_linear]

6.773

20267

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

[_linear]

9.414

20268

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

[_linear]

3.279

20269

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

[_linear]

4.026

20270

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

[_linear]

6.062

20271

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

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

3.441

20272

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

[_rational, [_1st_order, ‘_with_symmetry_[F(x)*G(y),0]‘], [_Abel, ‘2nd type‘, ‘class C‘]]

9.824

20273

\begin{align*} y^{\prime }+3 x^{2} y&=x^{5} {\mathrm e}^{x^{3}} \\ \end{align*}

[_linear]

4.093

20274

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

[‘y=_G(x,y’)‘]

33.743

20275

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

[_linear]

5.238

20276

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

[_linear]

3.234

20277

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

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

6.077

20278

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

[_linear]

3.138

20279

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

[_linear]

3.895

20280

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

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

34.904

20281

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

[‘x=_G(y,y’)‘]

24.520

20282

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

[_separable]

5.003

20283

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

[_Bernoulli]

7.493

20284

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

[_Bernoulli]

15.319

20285

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

[_Bernoulli]

7.120

20286

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

[[_1st_order, _with_linear_symmetries], _exact, _rational]

5.040

20287

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

[_exact, _rational, [_Abel, ‘2nd type‘, ‘class B‘]]

6.883

20288

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

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

19.260

20289

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

[[_homogeneous, ‘class G‘], _rational]

1.545

20290

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

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

1.598

20291

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

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

4.588

20292

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

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

17.232

20293

\begin{align*} \left (20 x^{2}+8 y x +4 y^{2}+3 y^{3}\right ) y+4 \left (x^{2}+y x +y^{2}+y^{3}\right ) x y^{\prime }&=0 \\ \end{align*}

[_rational]

4.853

20294

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

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

34.628

20295

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

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

70.983

20296

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

[[_1st_order, _with_linear_symmetries]]

110.355

20297

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

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

2.732

20298

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

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

3.040

20299

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

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

6.488

20300

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

[[_homogeneous, ‘class C‘], _Riccati]

6.637