2.2.153 Problems 15201 to 15300

Table 2.307: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

time (sec)

15201

\[ {}2 t y+\left (t^{2}+y^{2}\right ) y^{\prime } = 0 \]

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

3.271

15202

\[ {}2 t y^{3}+\left (1+3 t^{2} y^{2}\right ) y^{\prime } = 0 \]

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

1.482

15203

\[ {}\sin \left (y\right )^{2}+t \sin \left (2 y\right ) y^{\prime } = 0 \]

[_separable]

4.425

15204

\[ {}3 t^{2}+3 y^{2}+6 t y y^{\prime } = 0 \]

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

3.956

15205

\[ {}{\mathrm e}^{t} \sin \left (y\right )+\left (1+{\mathrm e}^{t} \cos \left (y\right )\right ) y^{\prime } = 0 \]

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

1.978

15206

\[ {}3 t^{2} y+3 y^{2}-1+\left (t^{3}+6 t y\right ) y^{\prime } = 0 \]

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

1.384

15207

\[ {}-2 t y^{2} \sin \left (t^{2}\right )+2 y \cos \left (t^{2}\right ) y^{\prime } = 0 \]

[_separable]

2.964

15208

\[ {}2 t -y^{2} \sin \left (t y\right )+\left (\cos \left (t y\right )-t y \sin \left (t y\right )\right ) y^{\prime } = 0 \]

[_exact]

72.355

15209

\[ {}1-y^{2} \cos \left (t y\right )+\left (t y \cos \left (t y\right )+\sin \left (t y\right )\right ) y^{\prime } = 0 \]

[‘y=_G(x,y’)‘]

85.223

15210

\[ {}2 t \sin \left (y\right )-2 t y \sin \left (t^{2}\right )+\left (t^{2} \cos \left (y\right )+\cos \left (t^{2}\right )\right ) y^{\prime } = 0 \]

[_exact]

69.061

15211

\[ {}\left (3+t \right ) \cos \left (y+t \right )+\sin \left (y+t \right )+\left (3+t \right ) \cos \left (y+t \right ) y^{\prime } = 0 \]

[[_1st_order, _with_linear_symmetries], _exact]

47.938

15212

\[ {}\frac {2 t^{2} y \cos \left (t^{2}\right )-y \sin \left (t^{2}\right )}{t^{2}}+\frac {\left (2 t y+\sin \left (t^{2}\right )\right ) y^{\prime }}{t} = 0 \]

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

12.832

15213

\[ {}-\frac {y^{2} {\mathrm e}^{\frac {y}{t}}}{t^{2}}+1+{\mathrm e}^{\frac {y}{t}} \left (1+\frac {y}{t}\right ) y^{\prime } = 0 \]

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

4.895

15214

\[ {}2 t \sin \left (\frac {y}{t}\right )-y \cos \left (\frac {y}{t}\right )+t \cos \left (\frac {y}{t}\right ) y^{\prime } = 0 \]

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

4.217

15215

\[ {}2 t y^{2}+2 t^{2} y y^{\prime } = 0 \]
i.c.

[_separable]

1.780

15216

\[ {}1+\frac {y}{t^{2}}-\frac {y^{\prime }}{t} = 0 \]
i.c.

[_linear]

1.252

15217

\[ {}2 t y+3 t^{2}+\left (t^{2}-1\right ) y^{\prime } = 0 \]
i.c.

[_linear]

1.214

15218

\[ {}1+5 t -y-\left (t +2 y\right ) y^{\prime } = 0 \]
i.c.

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

3.061

15219

\[ {}{\mathrm e}^{y}-2 t y+\left (t \,{\mathrm e}^{y}-t^{2}\right ) y^{\prime } = 0 \]
i.c.

[_exact]

1.553

15220

\[ {}2 t y \,{\mathrm e}^{t^{2}}+2 t \,{\mathrm e}^{-y}+\left ({\mathrm e}^{t^{2}}-t^{2} {\mathrm e}^{-y}+1\right ) y^{\prime } = 0 \]
i.c.

[_exact]

70.217

15221

\[ {}y^{2}-2 \sin \left (2 t \right )+\left (1+2 t y\right ) y^{\prime } = 0 \]
i.c.

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

96.254

15222

\[ {}\cos \left (t \right )^{2}-\sin \left (t \right )^{2}+y+\left (\sec \left (y\right ) \tan \left (y\right )+t \right ) y^{\prime } = 0 \]
i.c.

[_exact]

71.395

15223

\[ {}\frac {1}{t^{2}+1}-y^{2}-2 t y y^{\prime } = 0 \]
i.c.

[_exact, _rational, _Bernoulli]

1.564

15224

\[ {}\frac {2 t}{t^{2}+1}+y+\left ({\mathrm e}^{y}+t \right ) y^{\prime } = 0 \]
i.c.

[_exact]

1.868

15225

\[ {}-2 x -y \cos \left (y x \right )+\left (2 y-x \cos \left (y x \right )\right ) y^{\prime } = 0 \]
i.c.

[_exact]

15.973

15226

\[ {}-4 x^{3}+6 y \sin \left (6 y x \right )+\left (4 y^{3}+6 x \sin \left (6 y x \right )\right ) y^{\prime } = 0 \]
i.c.

[_exact]

88.545

15227

\[ {}t^{2} y+t^{3} y^{\prime } = 0 \]

[_separable]

1.433

15228

\[ {}y \left (2 \,{\mathrm e}^{t}+4 t \right )+3 \left ({\mathrm e}^{t}+t^{2}\right ) y^{\prime } = 0 \]

[_separable]

1.733

15229

\[ {}y+\left (2 t -y \,{\mathrm e}^{y}\right ) y^{\prime } = 0 \]

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

1.110

15230

\[ {}2 t y+y^{2}-t^{2} y^{\prime } = 0 \]

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

1.937

15231

\[ {}y+2 t^{2}+\left (t^{2} y-t \right ) y^{\prime } = 0 \]

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

1.152

15232

\[ {}5 t y+4 y^{2}+1+\left (t^{2}+2 t y\right ) y^{\prime } = 0 \]

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

1.341

15233

\[ {}5 t y^{2}+y+\left (2 t^{3}-t \right ) y^{\prime } = 0 \]

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

3.270

15234

\[ {}2 t +\tan \left (y\right )+\left (t -t^{2} \tan \left (y\right )\right ) y^{\prime } = 0 \]

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

2.120

15235

\[ {}2 t -y^{2} \sin \left (t y\right )+\left (\cos \left (t y\right )-t y \sin \left (t y\right )\right ) y^{\prime } = 0 \]

[_exact]

73.141

15236

\[ {}-1+{\mathrm e}^{t y} y+y \cos \left (t y\right )+\left (1+{\mathrm e}^{t y} t +t \cos \left (t y\right )\right ) y^{\prime } = 0 \]

[_exact]

73.326

15237

\[ {}2 t +2 y+\left (2 t +2 y\right ) y^{\prime } = 0 \]

[_quadrature]

0.464

15238

\[ {}\frac {9 t}{5}+2 y+\left (2 t +2 y\right ) y^{\prime } = 0 \]

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

3.827

15239

\[ {}2 t +\frac {19 y}{10}+\left (\frac {19 t}{10}+2 y\right ) y^{\prime } = 0 \]

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

3.184

15240

\[ {}y^{\prime }-\frac {y}{2} = \frac {t}{y} \]

[_rational, _Bernoulli]

1.158

15241

\[ {}y^{\prime }+y = t y^{2} \]

[_Bernoulli]

1.286

15242

\[ {}2 t y^{\prime }-y = 2 t y^{3} \cos \left (t \right ) \]

[_Bernoulli]

80.326

15243

\[ {}t y^{\prime }-y = t y^{3} \sin \left (t \right ) \]

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

78.557

15244

\[ {}y^{\prime }-2 y = \frac {\cos \left (t \right )}{\sqrt {y}} \]

[_Bernoulli]

40.132

15245

\[ {}y^{\prime }+3 y = \sqrt {y}\, \sin \left (t \right ) \]

[_Bernoulli]

1.793

15246

\[ {}y^{\prime }-\frac {y}{t} = t y^{2} \]

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

1.829

15247

\[ {}y^{\prime }-\frac {y}{t} = \frac {y^{2}}{t^{2}} \]

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

1.827

15248

\[ {}y^{\prime }-\frac {y}{t} = \frac {y^{2}}{t} \]

[_separable]

1.558

15249

\[ {}y^{\prime }-\frac {y}{t} = t^{2} y^{{3}/{2}} \]

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

4.419

15250

\[ {}\cos \left (\frac {t}{y+t}\right )+{\mathrm e}^{\frac {2 y}{t}} y^{\prime } = 0 \]

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

18.810

15251

\[ {}y \ln \left (\frac {t}{y}\right )+\frac {t^{2} y^{\prime }}{y+t} = 0 \]

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

4.613

15252

\[ {}2 \ln \left (t \right )-\ln \left (4 y^{2}\right ) y^{\prime } = 0 \]

[_separable]

11.292

15253

\[ {}\frac {2}{t}+\frac {1}{y}+\frac {t y^{\prime }}{y^{2}} = 0 \]

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

2.431

15254

\[ {}\frac {\sin \left (2 t \right )}{\cos \left (2 y\right )}+\frac {\ln \left (y\right ) y^{\prime }}{\ln \left (t \right )} = 0 \]

[_separable]

13.969

15255

\[ {}\sqrt {t^{2}+1}+y y^{\prime } = 0 \]

[_separable]

1.306

15256

\[ {}2 t +\left (y-3 t \right ) y^{\prime } = 0 \]

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

5.575

15257

\[ {}2 y-3 t +t y^{\prime } = 0 \]

[_linear]

1.688

15258

\[ {}t y-y^{2}+t \left (t -3 y\right ) y^{\prime } = 0 \]

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

4.074

15259

\[ {}t^{2}+t y+y^{2}-t y y^{\prime } = 0 \]

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

36.331

15260

\[ {}t^{3}+y^{3}-t y^{2} y^{\prime } = 0 \]

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

7.254

15261

\[ {}y^{\prime } = \frac {t +4 y}{4 t +y} \]

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

4.299

15262

\[ {}t -y+t y^{\prime } = 0 \]

[_linear]

1.086

15263

\[ {}y+\left (y+t \right ) y^{\prime } = 0 \]

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

3.150

15264

\[ {}2 t^{2}-7 t y+5 y^{2}+t y y^{\prime } = 0 \]

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

6.286

15265

\[ {}y+2 \sqrt {t^{2}+y^{2}}-t y^{\prime } = 0 \]

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

9.104

15266

\[ {}y^{2} = \left (t y-4 t^{2}\right ) y^{\prime } \]

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

40.080

15267

\[ {}y-\left (3 \sqrt {t y}+t \right ) y^{\prime } = 0 \]

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

10.121

15268

\[ {}\left (t^{2}-y^{2}\right ) y^{\prime }+y^{2}+t y = 0 \]

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

3.532

15269

\[ {}t y y^{\prime }-t^{2} {\mathrm e}^{-\frac {y}{t}}-y^{2} = 0 \]

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

2.550

15270

\[ {}y^{\prime } = \frac {1}{\frac {2 y \,{\mathrm e}^{-\frac {t}{y}}}{t}+\frac {t}{y}} \]

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

3.433

15271

\[ {}t \left (\ln \left (t \right )-\ln \left (y\right )\right ) y^{\prime } = y \]

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

6.918

15272

\[ {}y^{\prime }+2 y = t^{2} \sqrt {y} \]
i.c.

[_Bernoulli]

1.456

15273

\[ {}y^{\prime }-2 y = t^{2} \sqrt {y} \]
i.c.

[_Bernoulli]

4.285

15274

\[ {}y^{\prime } = \frac {4 y^{2}-t^{2}}{2 t y} \]
i.c.

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

4.212

15275

\[ {}t +y-t y^{\prime } = 0 \]
i.c.

[_linear]

1.336

15276

\[ {}t y^{\prime }-y-\sqrt {t^{2}+y^{2}} = 0 \]
i.c.

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

3.023

15277

\[ {}t^{3}+y^{2} \sqrt {t^{2}+y^{2}}-t y \sqrt {t^{2}+y^{2}}\, y^{\prime } = 0 \]
i.c.

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

5.865

15278

\[ {}y^{3}-t^{3}-t y^{2} y^{\prime } = 0 \]
i.c.

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

67.059

15279

\[ {}t y^{3}-\left (t^{4}+y^{4}\right ) y^{\prime } = 0 \]
i.c.

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

12.252

15280

\[ {}y^{4}+\left (t^{4}-t y^{3}\right ) y^{\prime } = 0 \]
i.c.

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

5.608

15281

\[ {}t -2 y+1+\left (4 t -3 y-6\right ) y^{\prime } = 0 \]

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

4.691

15282

\[ {}5 t +2 y+1+\left (2 t +y+1\right ) y^{\prime } = 0 \]

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

2.358

15283

\[ {}3 t -y+1-\left (6 t -2 y-3\right ) y^{\prime } = 0 \]

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

1.200

15284

\[ {}2 t +3 y+1+\left (4 t +6 y+1\right ) y^{\prime } = 0 \]

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

1.320

15285

\[ {}y^{\prime }-\frac {2 y}{x} = -x^{2} y \]

[_separable]

1.178

15286

\[ {}y^{\prime }+\cot \left (x \right ) y = y^{4} \]
i.c.

[_Bernoulli]

3.211

15287

\[ {}t y^{\prime }-{y^{\prime }}^{3} = y \]

[[_1st_order, _with_linear_symmetries], _Clairaut]

0.381

15288

\[ {}t y^{\prime }-y-2 \left (t y^{\prime }-y\right )^{2} = y^{\prime }+1 \]

[[_1st_order, _with_linear_symmetries], _rational, _Clairaut]

0.628

15289

\[ {}t y^{\prime }-y-1 = {y^{\prime }}^{2}-y^{\prime } \]

[[_1st_order, _with_linear_symmetries], _Clairaut]

0.350

15290

\[ {}1+y-t y^{\prime } = \ln \left (y^{\prime }\right ) \]

[[_1st_order, _with_linear_symmetries], _Clairaut]

1.631

15291

\[ {}1-2 t y^{\prime }+2 y = \frac {1}{{y^{\prime }}^{2}} \]

[[_1st_order, _with_linear_symmetries], _Clairaut]

0.751

15292

\[ {}y = -t y^{\prime }+\frac {{y^{\prime }}^{5}}{5} \]

[_dAlembert]

0.595

15293

\[ {}y = t {y^{\prime }}^{2}+3 {y^{\prime }}^{2}-2 {y^{\prime }}^{3} \]

[_dAlembert]

10.349

15294

\[ {}y = t \left (y^{\prime }+1\right )+2 y^{\prime }+1 \]

[_linear]

1.017

15295

\[ {}y = t \left (2-y^{\prime }\right )+2 {y^{\prime }}^{2}+1 \]

[[_1st_order, _with_linear_symmetries], _dAlembert]

0.445

15296

\[ {}t^{{1}/{3}} y^{{2}/{3}}+t +\left (t^{{2}/{3}} y^{{1}/{3}}+y\right ) y^{\prime } = 0 \]

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

70.570

15297

\[ {}y^{\prime } = \frac {y^{2}-t^{2}}{t y} \]
i.c.

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

5.275

15298

\[ {}y \sin \left (\frac {t}{y}\right )-\left (t +t \sin \left (\frac {t}{y}\right )\right ) y^{\prime } = 0 \]
i.c.

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

17.109

15299

\[ {}y^{\prime } = \frac {2 t^{5}}{5 y^{2}} \]

[_separable]

2.010

15300

\[ {}\cos \left (4 x \right )-8 \sin \left (y\right ) y^{\prime } = 0 \]

[_separable]

3.254