2.2.263 Problems 26201 to 26300

Table 2.543: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

Maple

Mma

Sympy

time(sec)

26201

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

[[_linear, ‘class A‘]]

1.276

26202

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

[_separable]

3.318

26203

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

[_separable]

2.619

26204

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

[_separable]

2.283

26205

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

[_separable]

2.390

26206

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

[[_Riccati, _special]]

7.013

26207

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

[_Riccati]

16.259

26208

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

[[_1st_order, _with_linear_symmetries], _rational, _Bernoulli]

3.208

26209

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

[_separable]

2.927

26210

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

[_separable]

4.523

26211

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

[_separable]

1.982

26212

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

[_separable]

3.199

26213

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

[_separable]

3.672

26214

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

[_separable]

5.687

26215

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

[_quadrature]

1.058

26216

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

[_separable]

3.901

26217

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

[_separable]

1.707

26218

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

[_separable]

4.813

26219

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

[_separable]

2.408

26220

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

[_separable]

3.449

26221

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

[_separable]

3.793

26222

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

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

1.730

26223

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

[[_linear, ‘class A‘]]

1.182

26224

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

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

6.751

26225

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

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

3.328

26226

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

[_separable]

5.992

26227

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

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

3.040

26228

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

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

2.877

26229

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

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

0.634

26230

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

[_exact, _rational, [_1st_order, ‘_with_symmetry_[F(x),G(x)*y+H(x)]‘]]

2.320

26231

\begin{align*} x^{6}-2 x^{5}+2 x^{4}-y^{3}+4 x^{2} y+\left (x y^{2}-4 x^{3}\right ) y^{\prime }&=0 \\ \end{align*}

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

3.895

26232

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

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

1.855

26233

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

[_Bernoulli]

2.169

26234

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

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

3.426

26235

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

[_separable]

2.124

26236

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

[_separable]

6.431

26237

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

[_separable]

6.744

26238

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

[_separable]

2.325

26239

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

[_quadrature]

6.056

26240

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

[_linear]

3.468

26241

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

[_quadrature]

0.644

26242

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

[_quadrature]

0.404

26243

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

[_quadrature]

0.241

26244

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

[_quadrature]

0.312

26245

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

[_quadrature]

0.438

26246

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

[_quadrature]

0.217

26247

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

[_quadrature]

0.273

26248

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

[_separable]

3.743

26249

\begin{align*} x^{2} y^{\prime }+\cos \left (2 y\right )&=1 \\ y \left (\infty \right ) &= \frac {5 \pi }{4} \\ \end{align*}

[_separable]

9.183

26250

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

[_separable]

9.174

26251

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

[_separable]

4.450

26252

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

[_quadrature]

2.366

26253

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

[_separable]

6.156

26254

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

[_separable]

7.970

26255

\begin{align*} x^{2} y^{\prime }+\sin \left (2 y\right )&=1 \\ y \left (\infty \right ) &= \frac {11 \pi }{4} \\ \end{align*}

[_separable]

20.300

26256

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

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

16.563

26257

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

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

7.069

26258

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

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

12.755

26259

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

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

18.140

26260

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

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

7.879

26261

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

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

9.559

26262

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

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

17.296

26263

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

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

124.392

26264

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

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

6.483

26265

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

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

4.953

26266

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

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

1.296

26267

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

[_linear]

2.775

26268

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

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

7.709

26269

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

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

58.395

26270

\begin{align*} y+y \sqrt {x^{2} y^{4}+1}+2 x y^{\prime }&=0 \\ \end{align*}

[[_homogeneous, ‘class G‘]]

4.914

26271

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

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

18.910

26272

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

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

9.395

26273

\begin{align*} 2 x^{2} y+2 \sqrt {1+y^{2} x^{4}}+x^{3} y^{\prime }&=0 \\ \end{align*}

[[_homogeneous, ‘class G‘]]

6.624

26274

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

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

10.667

26275

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

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

14.622

26276

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

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

13.871

26277

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

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

12.074

26278

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

[[_linear, ‘class A‘]]

2.099

26279

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

[_linear]

3.085

26280

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

[_linear]

4.652

26281

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

[_linear]

2.310

26282

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

[_linear]

4.082

26283

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

[_linear]

2.720

26284

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

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

2.536

26285

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

[_linear]

3.447

26286

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

[_linear]

2.137

26287

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

[_linear]

2.515

26288

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

[_linear]

5.204

26289

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

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

8.157

26290

\begin{align*} 8 x y^{\prime }-y&=-\frac {1}{y^{3} \sqrt {x +1}} \\ \end{align*}

[_Bernoulli]

8.224

26291

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

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

2.170

26292

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

[_rational, _Bernoulli]

2.162

26293

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

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

5.010

26294

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

[_Bernoulli]

7.665

26295

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

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

2.457

26296

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

[_Bernoulli]

28.355

26297

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

[_rational, _Bernoulli]

2.866

26298

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

[_rational, _Bernoulli]

1.906

26299

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

[[_1st_order, _with_linear_symmetries], _rational, _Bernoulli]

4.799

26300

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

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

1.788