2.2.143 Problems 14201 to 14300

Table 2.287: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

time (sec)

14201

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

[_exact, _rational]

1.383

14202

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

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

2.795

14203

\[ {}\frac {1}{x^{2}}+\frac {3 y^{2}}{x^{4}} = \frac {2 y y^{\prime }}{x^{3}} \]

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

4.204

14204

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

[_separable]

2.880

14205

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

[[_1st_order, _with_linear_symmetries], _exact, _rational]

1.749

14206

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

[[_1st_order, _with_linear_symmetries], _dAlembert]

3.776

14207

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

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

0.488

14208

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

[[_1st_order, _with_linear_symmetries], _dAlembert]

2.354

14209

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

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

1.862

14210

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

[_quadrature]

0.348

14211

\[ {}y = y^{\prime } x +\sqrt {1-{y^{\prime }}^{2}} \]

[[_1st_order, _with_linear_symmetries], _rational, _Clairaut]

1.458

14212

\[ {}y = y^{\prime } x +y^{\prime } \]

[_separable]

1.782

14213

\[ {}y = y^{\prime } x +\frac {1}{y^{\prime }} \]

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

0.370

14214

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

[[_1st_order, _with_linear_symmetries], _Clairaut]

0.628

14215

\[ {}y^{\prime } = \frac {2 y}{x}-\sqrt {3} \]

[_linear]

2.544

14216

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

[[_3rd_order, _missing_x]]

0.074

14217

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

[[_2nd_order, _missing_x], [_2nd_order, _reducible, _mu_poly_yn]]

2.531

14218

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

[[_3rd_order, _quadrature]]

0.203

14219

\[ {}y^{\prime \prime } = a^{2} y \]

[[_2nd_order, _missing_x]]

3.135

14220

\[ {}y^{\prime \prime } = \frac {a}{y^{3}} \]

[[_2nd_order, _missing_x], [_2nd_order, _reducible, _mu_x_y1]]

1.161

14221

\[ {}x y^{\prime \prime }-y^{\prime } = x^{2} {\mathrm e}^{x} \]
i.c.

[[_2nd_order, _missing_y]]

1.376

14222

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

[[_2nd_order, _missing_x], [_2nd_order, _reducible, _mu_x_y1], [_2nd_order, _reducible, _mu_y_y1]]

0.484

14223

\[ {}y^{\prime \prime }+\tan \left (x \right ) y^{\prime } = \sin \left (2 x \right ) \]
i.c.

[[_2nd_order, _missing_y]]

1.703

14224

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

[[_2nd_order, _missing_x]]

5.840

14225

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

[[_2nd_order, _missing_x], [_2nd_order, _reducible, _mu_poly_yn]]

2.516

14226

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

[[_3rd_order, _missing_x], [_3rd_order, _missing_y], [_3rd_order, _with_linear_symmetries], [_3rd_order, _reducible, _mu_y2], [_3rd_order, _reducible, _mu_poly_yn]]

0.309

14227

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

[[_3rd_order, _missing_x], [_3rd_order, _missing_y], [_3rd_order, _with_linear_symmetries], [_3rd_order, _reducible, _mu_y2], [_3rd_order, _reducible, _mu_poly_yn]]

0.553

14228

\[ {}y^{\prime \prime } = 9 y \]

[[_2nd_order, _missing_x]]

2.441

14229

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

[[_2nd_order, _missing_x]]

2.196

14230

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

[[_2nd_order, _missing_x]]

2.296

14231

\[ {}y^{\prime \prime }+12 y = 7 y^{\prime } \]

[[_2nd_order, _missing_x]]

1.107

14232

\[ {}y^{\prime \prime }-4 y^{\prime }+4 y = 0 \]

[[_2nd_order, _missing_x]]

1.193

14233

\[ {}y^{\prime \prime }+2 y^{\prime }+10 y = 0 \]

[[_2nd_order, _missing_x]]

2.915

14234

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

[[_2nd_order, _missing_x]]

1.431

14235

\[ {}4 y^{\prime \prime }-12 y^{\prime }+9 y = 0 \]

[[_2nd_order, _missing_x]]

1.215

14236

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

[[_2nd_order, _missing_x]]

2.345

14237

\[ {}y^{\prime \prime \prime \prime }-5 y^{\prime \prime }+4 y = 0 \]

[[_high_order, _missing_x]]

0.086

14238

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

[[_3rd_order, _missing_x]]

0.082

14239

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

[[_3rd_order, _missing_x]]

0.085

14240

\[ {}y^{\left (5\right )}-4 y^{\prime \prime \prime } = 0 \]

[[_high_order, _missing_x]]

0.076

14241

\[ {}y^{\prime \prime \prime \prime }+2 y^{\prime \prime }+9 y = 0 \]

[[_high_order, _missing_x]]

0.088

14242

\[ {}y^{\prime \prime \prime \prime }-8 y^{\prime \prime }+16 y = 0 \]

[[_high_order, _missing_x]]

0.085

14243

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

[[_high_order, _missing_x]]

0.089

14244

\[ {}y^{\prime \prime \prime \prime }-a^{4} y = 0 \]

[[_high_order, _missing_x]]

0.091

14245

\[ {}y^{\prime \prime }-7 y^{\prime }+12 y = x \]

[[_2nd_order, _with_linear_symmetries]]

1.362

14246

\[ {}s^{\prime \prime }-a^{2} s = 1+t \]

[[_2nd_order, _with_linear_symmetries]]

0.999

14247

\[ {}y^{\prime \prime }+y^{\prime }-2 y = 8 \sin \left (2 x \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

1.712

14248

\[ {}y^{\prime \prime }-y = 5 x +2 \]

[[_2nd_order, _with_linear_symmetries]]

1.391

14249

\[ {}y^{\prime \prime }-2 a y^{\prime }+a^{2} y = {\mathrm e}^{x} \]

[[_2nd_order, _with_linear_symmetries]]

0.862

14250

\[ {}y^{\prime \prime }+6 y^{\prime }+5 y = {\mathrm e}^{2 x} \]

[[_2nd_order, _with_linear_symmetries]]

1.308

14251

\[ {}y^{\prime \prime }+9 y = 6 \,{\mathrm e}^{3 x} \]

[[_2nd_order, _with_linear_symmetries]]

3.033

14252

\[ {}y^{\prime \prime }-3 y^{\prime } = 2-6 x \]

[[_2nd_order, _missing_y]]

2.196

14253

\[ {}y^{\prime \prime }-2 y^{\prime }+3 y = {\mathrm e}^{-x} \cos \left (x \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

76.543

14254

\[ {}y^{\prime \prime }+4 y = 2 \sin \left (2 x \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

4.061

14255

\[ {}y^{\prime \prime \prime }-4 y^{\prime \prime }+5 y^{\prime }-2 y = 2 x +3 \]

[[_3rd_order, _with_linear_symmetries]]

0.127

14256

\[ {}y^{\prime \prime \prime \prime }-a^{4} y = 5 a^{4} {\mathrm e}^{a x} \sin \left (a x \right ) \]

[[_high_order, _linear, _nonhomogeneous]]

0.175

14257

\[ {}y^{\prime \prime \prime \prime }+2 a^{2} y^{\prime \prime }+a^{4} y = 8 \cos \left (a x \right ) \]

[[_high_order, _linear, _nonhomogeneous]]

1.063

14258

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

[[_2nd_order, _missing_x]]

5.579

14259

\[ {}y^{\prime \prime }+n^{2} y = h \sin \left (r x \right ) \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

2.497

14260

\[ {}y^{\prime \prime }-7 y^{\prime }+6 y = \sin \left (x \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

1.640

14261

\[ {}y^{\prime \prime }+y = \sec \left (x \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

2.985

14262

\[ {}y^{\prime \prime }+y = \frac {1}{\cos \left (2 x \right )^{{3}/{2}}} \]

[[_2nd_order, _linear, _nonhomogeneous]]

3.346

14263

\[ {}\left [\begin {array}{c} x^{\prime }=y+1 \\ y^{\prime }=x+1 \end {array}\right ] \]
i.c.

system_of_ODEs

0.668

14264

\[ {}\left [\begin {array}{c} x^{\prime }=x-2 y \\ y^{\prime }=x-y \end {array}\right ] \]
i.c.

system_of_ODEs

0.515

14265

\[ {}\left [\begin {array}{c} 4 x^{\prime }-y^{\prime }+3 x=\sin \left (t \right ) \\ x^{\prime }+y=\cos \left (t \right ) \end {array}\right ] \]

system_of_ODEs

0.598

14266

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

[[_2nd_order, _missing_x], [_2nd_order, _reducible, _mu_x_y1]]

2.898

14267

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

[_separable]

2.858

14268

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

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

0.496

14269

\[ {}y^{\prime \prime }+y = \sec \left (x \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

3.046

14270

\[ {}\left (x^{2}+1\right ) y^{\prime }-x y-\alpha = 0 \]

[_linear]

1.848

14271

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

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

4.950

14272

\[ {}y^{\prime \prime }-4 y = {\mathrm e}^{2 x} \sin \left (2 x \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

1.984

14273

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

[_Bernoulli]

1.839

14274

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

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

1.711

14275

\[ {}3 \,{\mathrm e}^{x} \tan \left (y\right )+\left (1-{\mathrm e}^{x}\right ) \sec \left (y\right )^{2} y^{\prime } = 0 \]

[_separable]

3.022

14276

\[ {}\left [\begin {array}{c} x^{\prime }=2 x-3 y \\ y^{\prime }=5 x+6 y \end {array}\right ] \]

system_of_ODEs

0.723

14277

\[ {}\left [\begin {array}{c} x^{\prime }=-4 x-10 y \\ y^{\prime }=x-2 y \end {array}\right ] \]

system_of_ODEs

0.530

14278

\[ {}\left [\begin {array}{c} x^{\prime }=12 x+18 y \\ y^{\prime }=-8 x-12 y \end {array}\right ] \]

system_of_ODEs

0.388

14279

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

[[_Riccati, _special]]

1.803

14280

\[ {}y^{\prime }+\frac {y}{x} = {\mathrm e}^{x} \]
i.c.

[_linear]

1.382

14281

\[ {}\left [\begin {array}{c} x^{\prime }=y-x \\ y^{\prime }=-x-3 y \end {array}\right ] \]
i.c.

system_of_ODEs

0.523

14282

\[ {}\left [\begin {array}{c} x^{\prime }=x-5 y \\ y^{\prime }=x-y \end {array}\right ] \]

system_of_ODEs

0.480

14283

\[ {}\left [\begin {array}{c} x^{\prime }=x+y \\ y^{\prime }=x-2 y \end {array}\right ] \]

system_of_ODEs

0.594

14284

\[ {}\left [\begin {array}{c} x^{\prime }=-4 x+2 y \\ y^{\prime }=3 x-2 y \end {array}\right ] \]

system_of_ODEs

0.611

14285

\[ {}\left [\begin {array}{c} x^{\prime }=x+2 y \\ y^{\prime }=2 x+2 y \end {array}\right ] \]

system_of_ODEs

0.588

14286

\[ {}\left [\begin {array}{c} x^{\prime }=4 x-2 y \\ y^{\prime }=3 x-y \end {array}\right ] \]

system_of_ODEs

0.420

14287

\[ {}\left [\begin {array}{c} x^{\prime }=2 x+y \\ y^{\prime }=y-x \end {array}\right ] \]

system_of_ODEs

0.687

14288

\[ {}\left [\begin {array}{c} x^{\prime }=3 x-y \\ y^{\prime }=x+y \end {array}\right ] \]

system_of_ODEs

0.380

14289

\[ {}\left [\begin {array}{c} x^{\prime }=x-y \\ y^{\prime }=2 x-2 y \end {array}\right ] \]

system_of_ODEs

0.388

14290

\[ {}\left [\begin {array}{c} x^{\prime }=x \\ y^{\prime }=2 x-3 y \end {array}\right ] \]

system_of_ODEs

0.395

14291

\[ {}\left [\begin {array}{c} x^{\prime }=x \\ y^{\prime }=x+3 y \end {array}\right ] \]

system_of_ODEs

0.387

14292

\[ {}\left [\begin {array}{c} x^{\prime }=-y \\ y^{\prime }=2 x-4 y \end {array}\right ] \]

system_of_ODEs

0.595

14293

\[ {}\left [\begin {array}{c} x^{\prime }=x \\ y^{\prime }=y \end {array}\right ] \]

system_of_ODEs

0.314

14294

\[ {}\left [\begin {array}{c} x^{\prime }=0 \\ y^{\prime }=x \end {array}\right ] \]

system_of_ODEs

0.317

14295

\[ {}x^{\prime \prime }+x-x^{3} = 0 \]

[[_2nd_order, _missing_x], _Duffing, [_2nd_order, _reducible, _mu_x_y1]]

2.221

14296

\[ {}x^{\prime \prime }+x+x^{3} = 0 \]

[[_2nd_order, _missing_x], _Duffing, [_2nd_order, _reducible, _mu_x_y1]]

2.662

14297

\[ {}x^{\prime \prime }+x^{\prime }+x-x^{3} = 0 \]

[[_2nd_order, _missing_x]]

1.756

14298

\[ {}x^{\prime \prime }+x^{\prime }+x+x^{3} = 0 \]

[[_2nd_order, _missing_x]]

1.737

14299

\[ {}x^{\prime \prime } = \left (2 \cos \left (x\right )-1\right ) \sin \left (x\right ) \]

[[_2nd_order, _missing_x], [_2nd_order, _reducible, _mu_x_y1]]

2.555

14300

\[ {}\left [\begin {array}{c} x^{\prime }=x-5 y \\ y^{\prime }=x-y \end {array}\right ] \]

system_of_ODEs

0.523