2.2.73 Problems 7201 to 7300

Table 2.147: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

time (sec)

7201

\[ {}x^{2} y^{\prime \prime }-3 y^{\prime } x +4 y = 0 \]

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

0.964

7202

\[ {}x^{2} y^{\prime \prime }+2 y^{\prime } x -6 y = 0 \]

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

0.826

7203

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

[[_Emden, _Fowler]]

2.070

7204

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

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

1.153

7205

\[ {}x^{2} y^{\prime \prime }+y^{\prime } x -16 y = 0 \]

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

0.872

7206

\[ {}y^{\prime \prime }+3 y^{\prime }-10 y = 6 \,{\mathrm e}^{4 x} \]

[[_2nd_order, _with_linear_symmetries]]

1.273

7207

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

[[_2nd_order, _linear, _nonhomogeneous]]

2.296

7208

\[ {}y^{\prime \prime }+10 y^{\prime }+25 y = 14 \,{\mathrm e}^{-5 x} \]

[[_2nd_order, _with_linear_symmetries]]

0.944

7209

\[ {}y^{\prime \prime }-2 y^{\prime }+5 y = 25 x^{2}+12 \]

[[_2nd_order, _with_linear_symmetries]]

25.707

7210

\[ {}y^{\prime \prime }-y^{\prime }-6 y = 20 \,{\mathrm e}^{-2 x} \]

[[_2nd_order, _with_linear_symmetries]]

0.938

7211

\[ {}y^{\prime \prime }-3 y^{\prime }+2 y = 14 \sin \left (2 x \right )-18 \cos \left (2 x \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

2.326

7212

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

[[_2nd_order, _linear, _nonhomogeneous]]

2.166

7213

\[ {}y^{\prime \prime }-2 y^{\prime } = 12 x -10 \]

[[_2nd_order, _missing_y]]

1.502

7214

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

[[_2nd_order, _with_linear_symmetries]]

0.911

7215

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

[[_2nd_order, _linear, _nonhomogeneous]]

4.593

7216

\[ {}y^{\prime \prime }+y^{\prime } = 10 x^{4}+2 \]

[[_2nd_order, _missing_y]]

1.424

7217

\[ {}y^{\prime \prime }+4 y = 4 \cos \left (2 x \right )+6 \cos \left (x \right )+8 x^{2}-4 x \]

[[_2nd_order, _linear, _nonhomogeneous]]

5.183

7218

\[ {}y^{\prime \prime }+9 y = 2 \sin \left (3 x \right )+4 \sin \left (x \right )-26 \,{\mathrm e}^{-2 x}+27 x^{3} \]

[[_2nd_order, _linear, _nonhomogeneous]]

6.615

7219

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

[[_2nd_order, _with_linear_symmetries]]

1.164

7220

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

[[_3rd_order, _missing_y]]

0.589

7221

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

[[_2nd_order, _linear, _nonhomogeneous]]

4.943

7222

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

[[_2nd_order, _linear, _nonhomogeneous]]

1.041

7223

\[ {}y^{\prime \prime }-2 y^{\prime }-3 y = 64 x \,{\mathrm e}^{-x} \]

[[_2nd_order, _linear, _nonhomogeneous]]

1.023

7224

\[ {}y^{\prime \prime }+2 y^{\prime }+5 y = {\mathrm e}^{-x} \sec \left (2 x \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

4.868

7225

\[ {}2 y^{\prime \prime }+3 y^{\prime }+y = {\mathrm e}^{-3 x} \]

[[_2nd_order, _with_linear_symmetries]]

0.960

7226

\[ {}y^{\prime \prime }-3 y^{\prime }+2 y = \frac {1}{1+{\mathrm e}^{-x}} \]

[[_2nd_order, _linear, _nonhomogeneous]]

1.033

7227

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

[[_2nd_order, _linear, _nonhomogeneous]]

2.227

7228

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

[[_2nd_order, _linear, _nonhomogeneous]]

2.204

7229

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

[[_2nd_order, _linear, _nonhomogeneous]]

3.392

7230

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

[[_2nd_order, _linear, _nonhomogeneous]]

2.412

7231

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

[[_2nd_order, _linear, _nonhomogeneous]]

2.695

7232

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

[[_2nd_order, _linear, _nonhomogeneous]]

2.560

7233

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

[[_2nd_order, _linear, _nonhomogeneous]]

3.185

7234

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

[[_2nd_order, _with_linear_symmetries]]

0.974

7235

\[ {}y^{\prime \prime }-y^{\prime }-6 y = {\mathrm e}^{-x} \]

[[_2nd_order, _with_linear_symmetries]]

1.654

7236

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

[[_2nd_order, _with_linear_symmetries]]

1.423

7237

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

[[_2nd_order, _linear, _nonhomogeneous]]

1.420

7238

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

[[_2nd_order, _with_linear_symmetries]]

1.539

7239

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

[[_2nd_order, _with_linear_symmetries]]

1.178

7240

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

[[_2nd_order, _with_linear_symmetries]]

2.062

7241

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

[[_2nd_order, _missing_x]]

0.409

7242

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

[[_2nd_order, _missing_x]]

0.416

7243

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

[[_2nd_order, _missing_y]]

0.368

7244

\[ {}x^{2} y^{\prime \prime }+y^{\prime } x -4 y = 0 \]

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

0.372

7245

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

[_Gegenbauer]

0.336

7246

\[ {}x^{2} y^{\prime \prime }+y^{\prime } x +\left (x^{2}-\frac {1}{4}\right ) y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.375

7247

\[ {}y^{\prime \prime }-\frac {x y^{\prime }}{x -1}+\frac {y}{x -1} = 0 \]

[[_2nd_order, _with_linear_symmetries]]

0.324

7248

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

[[_Emden, _Fowler]]

0.303

7249

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

[[_2nd_order, _with_linear_symmetries]]

0.325

7250

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

[[_2nd_order, _with_linear_symmetries]]

0.649

7251

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

[[_2nd_order, _with_linear_symmetries]]

0.328

7252

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

[[_3rd_order, _missing_x]]

0.060

7253

\[ {}y^{\prime \prime \prime }-3 y^{\prime \prime }+4 y^{\prime }-2 y = 0 \]

[[_3rd_order, _missing_x]]

0.068

7254

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

[[_3rd_order, _missing_x]]

0.068

7255

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

[[_3rd_order, _missing_x]]

0.067

7256

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

[[_3rd_order, _missing_x]]

0.069

7257

\[ {}y^{\prime \prime \prime \prime }+4 y^{\prime \prime \prime }+6 y^{\prime \prime }+4 y^{\prime }+y = 0 \]

[[_high_order, _missing_x]]

0.072

7258

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

[[_high_order, _missing_x]]

0.069

7259

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

[[_high_order, _missing_x]]

0.072

7260

\[ {}y^{\prime \prime \prime \prime }-2 a^{2} y^{\prime \prime }+a^{4} y = 0 \]

[[_high_order, _missing_x]]

0.073

7261

\[ {}y^{\prime \prime \prime \prime }+2 a^{2} y^{\prime \prime }+a^{4} y = 0 \]

[[_high_order, _missing_x]]

0.086

7262

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

[[_high_order, _missing_x]]

0.074

7263

\[ {}y^{\prime \prime \prime \prime }+2 y^{\prime \prime \prime }-2 y^{\prime \prime }-6 y^{\prime }+5 y = 0 \]

[[_high_order, _missing_x]]

0.070

7264

\[ {}y^{\prime \prime \prime }-6 y^{\prime \prime }+11 y^{\prime }-6 y = 0 \]

[[_3rd_order, _missing_x]]

0.066

7265

\[ {}y^{\prime \prime \prime \prime }+y^{\prime \prime \prime }-3 y^{\prime \prime }-5 y^{\prime }-2 y = 0 \]

[[_high_order, _missing_x]]

0.070

7266

\[ {}y^{\left (5\right )}-6 y^{\prime \prime \prime \prime }-8 y^{\prime \prime \prime }+48 y^{\prime \prime }+16 y^{\prime }-96 y = 0 \]

[[_high_order, _missing_x]]

0.076

7267

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

[[_high_order, _quadrature]]

0.034

7268

\[ {}y^{\prime \prime \prime \prime } = \sin \left (x \right )+24 \]

[[_high_order, _quadrature]]

0.138

7269

\[ {}y^{\prime \prime \prime }-3 y^{\prime \prime }+2 y^{\prime } = 10+42 \,{\mathrm e}^{3 x} \]

[[_3rd_order, _missing_y]]

0.121

7270

\[ {}y^{\prime \prime \prime }-y^{\prime } = 1 \]
i.c.

[[_3rd_order, _missing_x]]

0.148

7271

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

[[_3rd_order, _missing_y]]

0.108

7272

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

[[_3rd_order, _exact, _linear, _homogeneous]]

0.116

7273

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

[[_3rd_order, _with_linear_symmetries]]

0.120

7274

\[ {}x^{3} y^{\prime \prime \prime \prime }+8 x^{2} y^{\prime \prime \prime }+8 x y^{\prime \prime }-8 y^{\prime } = 0 \]

[[_high_order, _missing_y]]

0.170

7275

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

[[_2nd_order, _missing_x]]

0.964

7276

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

[[_2nd_order, _missing_x]]

1.576

7277

\[ {}y^{\prime \prime }+6 y^{\prime }+9 y = 0 \]

[[_2nd_order, _missing_x]]

0.752

7278

\[ {}y^{\prime \prime }-y^{\prime }+6 y = 0 \]

[[_2nd_order, _missing_x]]

1.559

7279

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

[[_2nd_order, _with_linear_symmetries]]

1.553

7280

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

[[_2nd_order, _with_linear_symmetries]]

1.634

7281

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

[[_2nd_order, _linear, _nonhomogeneous]]

27.617

7282

\[ {}y^{\prime \prime }-y = {\mathrm e}^{3 x} \]

[[_2nd_order, _with_linear_symmetries]]

0.889

7283

\[ {}y^{\prime \prime }+9 y = 0 \]
i.c.

[[_2nd_order, _missing_x]]

2.852

7284

\[ {}y^{\prime \prime }-y^{\prime }+4 y = x \]
i.c.

[[_2nd_order, _with_linear_symmetries]]

9.928

7285

\[ {}y^{\prime \prime }+2 y^{\prime }+5 y = {\mathrm e}^{x} \]
i.c.

[[_2nd_order, _with_linear_symmetries]]

12.717

7286

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

[[_2nd_order, _linear, _nonhomogeneous]]

74.836

7287

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

[[_2nd_order, _with_linear_symmetries]]

2.210

7288

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

[[_2nd_order, _linear, _nonhomogeneous]]

1.710

7289

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

[[_2nd_order, _quadrature]]

6.869

7290

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

[[_2nd_order, _missing_y]]

2.633

7291

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

[[_2nd_order, _with_linear_symmetries]]

0.914

7292

\[ {}y^{\prime \prime }-3 y^{\prime }+2 y = {\mathrm e}^{-x} \]

[[_2nd_order, _with_linear_symmetries]]

0.914

7293

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

[[_2nd_order, _linear, _nonhomogeneous]]

1.299

7294

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

[[_2nd_order, _linear, _nonhomogeneous]]

2.273

7295

\[ {}y^{\prime \prime }+9 y = \sec \left (2 x \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

24.227

7296

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

[[_2nd_order, _linear, _nonhomogeneous]]

1.312

7297

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

[[_2nd_order, _exact, _linear, _nonhomogeneous]]

1.619

7298

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

[[_2nd_order, _linear, _nonhomogeneous]]

3.862

7299

\[ {}y^{\prime \prime }-y = 3 \,{\mathrm e}^{2 x} \]

[[_2nd_order, _with_linear_symmetries]]

0.510

7300

\[ {}y^{\prime \prime }+y = -8 \sin \left (3 x \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

0.693