2.2.13 Problems 1201 to 1300

Table 2.43: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

Maple

Mma

Sympy

time(sec)

1201

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 2 x -2 \,{\mathrm e}^{y x} \sin \left (2 x \right )+{\mathrm e}^{y x} \cos \left (2 x \right ) y+\left (-3+{\mathrm e}^{y x} x \cos \left (2 x \right )\right ) y^{\prime }&=0 \end {array} \]

[_exact]

10.641

1202

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \frac {y}{x}+6 x +\left (\ln \left (x \right )-2\right ) y^{\prime }&=0 \end {array} \]

[_linear]

9.316

1203

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x \ln \left (x \right )+y x +\left (y \ln \left (x \right )+y x \right ) y^{\prime }&=0 \end {array} \]

[[_Abel, ‘2nd type‘, ‘class B‘]]

69.714

1204

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \frac {x}{\left (x^{2}+y^{2}\right )^{{3}/{2}}}+\frac {y y^{\prime }}{\left (x^{2}+y^{2}\right )^{{3}/{2}}}&=0 \end {array} \]

[_separable]

19.990

1205

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 2 x -y+\left (-x +2 y\right ) y^{\prime }&=0\\ y \left (1\right )&=3\\ \end {array} \]

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

61.421

1206

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} -1+9 x^{2}+y+\left (x -4 y\right ) y^{\prime }&=0\\ y \left (1\right )&=0\\ \end {array} \]

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

143.398

1207

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{2} y^{3}+x \left (1+y^{2}\right ) y^{\prime }&=0 \end {array} \]

[_separable]

4.583

1208

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y+\left (2 x -{\mathrm e}^{y} y\right ) y^{\prime }&=0 \end {array} \]

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

7.174

1209

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (2+x \right ) \sin \left (y\right )+x \cos \left (y\right ) y^{\prime }&=0 \end {array} \]

[_separable]

9.062

1210

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 2 y x +3 x^{2} y+y^{3}+\left (x^{2}+y^{2}\right ) y^{\prime }&=0 \end {array} \]

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

356.102

1211

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime }&=-1+{\mathrm e}^{2 x}+y \end {array} \]

[[_linear, ‘class A‘]]

3.695

1212

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 1+\left (-\sin \left (y\right )+\frac {x}{y}\right ) y^{\prime }&=0 \end {array} \]

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

11.855

1213

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y+\left (-{\mathrm e}^{-2 y}+2 y x \right ) y^{\prime }&=0 \end {array} \]

[[_1st_order, _with_exponential_symmetries]]

8.331

1214

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} {\mathrm e}^{x}+\left ({\mathrm e}^{x} \cot \left (y\right )+2 \csc \left (y\right ) y\right ) y^{\prime }&=0 \end {array} \]

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

10.582

1215

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \frac {4 x^{3}}{y^{2}}+\frac {3}{y}+\left (\frac {3 x}{y^{2}}+4 y\right ) y^{\prime }&=0 \end {array} \]

[_rational]

7.154

1216

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 3 x +\frac {6}{y}+\left (\frac {x^{2}}{y}+\frac {3 y}{x}\right ) y^{\prime }&=0 \end {array} \]

[_rational]

506.752

1217

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 3 y x +y^{2}+\left (y x +x^{2}\right ) y^{\prime }&=0 \end {array} \]

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

148.490

1218

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime }&=\frac {x^{3}-2 y}{x} \end {array} \]

[_linear]

9.493

1219

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime }&=\frac {\cos \left (x \right )+1}{2-\sin \left (y\right )} \end {array} \]

[_separable]

7.967

1220

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime }&=\frac {2 x +y}{3-x +3 y^{2}}\\ y \left (0\right )&=0\\ \end {array} \]

[_rational]

8.413

1221

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime }&=3-6 x +y-2 y x \end {array} \]

[_separable]

4.668

1222

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime }&=\frac {-1-2 y x -y^{2}}{x^{2}+2 y x} \end {array} \]

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

147.389

1223

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y x +y^{\prime } x&=1-y\\ y \left (1\right )&=0\\ \end {array} \]

[_linear]

2.754

1224

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime }&=\frac {4 x^{3}+1}{y \left (2+3 y\right )} \end {array} \]

[_separable]

4.083

1225

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime } x +2 y&=\frac {\sin \left (x \right )}{x}\\ y \left (2\right )&=1\\ \end {array} \]

[_linear]

4.639

1226

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime }&=\frac {-1-2 y x}{x^{2}+2 y} \end {array} \]

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

8.607

1227

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \frac {-x^{2}+x +1}{x^{2}}+\frac {y y^{\prime }}{y-2}&=0 \end {array} \]

[_separable]

310.694

1228

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{2}+y+\left ({\mathrm e}^{y}+x \right ) y^{\prime }&=0 \end {array} \]

[_exact]

6.214

1229

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime }+y&=\frac {1}{{\mathrm e}^{x}+1} \end {array} \]

[_linear]

3.423

1230

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime }&=1+2 x +y^{2}+2 x y^{2} \end {array} \]

[_separable]

8.252

1231

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x +y+\left (x +2 y\right ) y^{\prime }&=0\\ y \left (2\right )&=3\\ \end {array} \]

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

47.794

1232

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left ({\mathrm e}^{x}+1\right ) y^{\prime }&=y-{\mathrm e}^{x} y \end {array} \]

[_separable]

13.287

1233

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime }&=\frac {-{\mathrm e}^{2 y} \cos \left (x \right )+\cos \left (y\right ) {\mathrm e}^{-x}}{2 \,{\mathrm e}^{2 y} \sin \left (x \right )-\sin \left (y\right ) {\mathrm e}^{-x}} \end {array} \]

[NONE]

46.447

1234

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime }&={\mathrm e}^{2 x}+3 y \end {array} \]

[[_linear, ‘class A‘]]

7.440

1235

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 2 y+y^{\prime }&={\mathrm e}^{-x^{2}-2 x} \end {array} \]

[[_linear, ‘class A‘]]

3.907

1236

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime }&=\frac {3 x^{2}-2 y-y^{3}}{2 x +3 x y^{2}} \end {array} \]

[_rational]

4.790

1237

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime }&={\mathrm e}^{x +y} \end {array} \]

[_separable]

195.171

1238

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \frac {-4+6 y x +2 y^{2}}{3 x^{2}+4 y x +3 y^{2}}+y^{\prime }&=0 \end {array} \]

[_rational]

368.431

1239

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime }&=\frac {x^{2}-1}{1+y^{2}}\\ y \left (-1\right )&=1\\ \end {array} \]

[_separable]

6.932

1240

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (1+t \right ) y+y^{\prime } t&={\mathrm e}^{2 t} \end {array} \]

[_linear]

4.475

1241

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 2 \cos \left (x \right ) \sin \left (x \right ) \sin \left (y\right )+\cos \left (y\right ) \sin \left (x \right )^{2} y^{\prime }&=0 \end {array} \]

[_separable]

464.435

1242

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \frac {2 x}{y}-\frac {y}{x^{2}+y^{2}}+\left (-\frac {x^{2}}{y^{2}}+\frac {x}{x^{2}+y^{2}}\right ) y^{\prime }&=0 \end {array} \]

[_exact, _rational]

4.596

1243

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime } x&={\mathrm e}^{\frac {y}{x}} x +y \end {array} \]

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

542.486

1244

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime }&=\frac {x}{x^{2}+y+y^{3}} \end {array} \]

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

4.898

1245

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 3 t +2 y&=-y^{\prime } t \end {array} \]

[_linear]

16.631

1246

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime }&=\frac {x +y}{x -y} \end {array} \]

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

26.325

1247

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 2 y x +3 y^{2}-\left (x^{2}+2 y x \right ) y^{\prime }&=0 \end {array} \]

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

44.997

1248

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime }&=\frac {-3 x^{2} y-y^{2}}{2 x^{3}+3 y x}\\ y \left (1\right )&=-2\\ \end {array} \]

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

76.198

1249

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+2 y^{\prime }-3 y&=0 \end {array} \]

[[_2nd_order, _missing_x]]

0.250

1250

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+3 y^{\prime }+2 y&=0 \end {array} \]

[[_2nd_order, _missing_x]]

0.242

1251

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 6 y^{\prime \prime }-y^{\prime }-y&=0 \end {array} \]

[[_2nd_order, _missing_x]]

0.240

1252

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 2 y^{\prime \prime }-3 y^{\prime }+y&=0 \end {array} \]

[[_2nd_order, _missing_x]]

0.260

1253

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+5 y^{\prime }&=0 \end {array} \]

[[_2nd_order, _missing_x]]

183.757

1254

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 4 y^{\prime \prime }-9 y&=0 \end {array} \]

[[_2nd_order, _missing_x]]

3.311

1255

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }-9 y^{\prime }+9 y&=0 \end {array} \]

[[_2nd_order, _missing_x]]

0.369

1256

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }-2 y^{\prime }-2 y&=0 \end {array} \]

[[_2nd_order, _missing_x]]

0.321

1257

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+y^{\prime }-2 y&=0\\ y \left (0\right )&=0\\ y^{\prime }\left (0\right )&=1\\ \end {array} \]

[[_2nd_order, _missing_x]]

0.599

1258

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+4 y^{\prime }+3 y&=0\\ y \left (0\right )&=2\\ y^{\prime }\left (0\right )&=-1\\ \end {array} \]

[[_2nd_order, _missing_x]]

0.558

1259

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 6 y^{\prime \prime }-5 y^{\prime }+y&=0\\ y \left (0\right )&=4\\ y^{\prime }\left (0\right )&=0\\ \end {array} \]

[[_2nd_order, _missing_x]]

4.292

1260

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+3 y^{\prime }&=0\\ y \left (0\right )&=-2\\ y^{\prime }\left (0\right )&=3\\ \end {array} \]

[[_2nd_order, _missing_x]]

6.717

1261

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+5 y^{\prime }+3 y&=0\\ y \left (0\right )&=1\\ y^{\prime }\left (0\right )&=0\\ \end {array} \]

[[_2nd_order, _missing_x]]

1.098

1262

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 2 y^{\prime \prime }+y^{\prime }-4 y&=0\\ y \left (0\right )&=0\\ y^{\prime }\left (0\right )&=1\\ \end {array} \]

[[_2nd_order, _missing_x]]

0.917

1263

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+8 y^{\prime }-9 y&=0\\ y \left (1\right )&=1\\ y^{\prime }\left (1\right )&=0\\ \end {array} \]

[[_2nd_order, _missing_x]]

0.532

1264

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 4 y^{\prime \prime }-y&=0\\ y \left (-2\right )&=1\\ y^{\prime }\left (-2\right )&=-1\\ \end {array} \]

[[_2nd_order, _missing_x]]

12.597

1265

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }-y&=0\\ y \left (0\right )&={\frac {5}{4}}\\ y^{\prime }\left (0\right )&=-{\frac {3}{4}}\\ \end {array} \]

[[_2nd_order, _missing_x]]

7.707

1266

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 2 y^{\prime \prime }-3 y^{\prime }+y&=0\\ y \left (0\right )&=2\\ y^{\prime }\left (0\right )&={\frac {1}{2}}\\ \end {array} \]

[[_2nd_order, _missing_x]]

0.584

1267

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }-y^{\prime }-2 y&=0\\ y \left (0\right )&=\alpha \\ y^{\prime }\left (0\right )&=2\\ \end {array} \]

[[_2nd_order, _missing_x]]

0.524

1268

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 4 y^{\prime \prime }-y&=0\\ y \left (0\right )&=2\\ y^{\prime }\left (0\right )&=\beta \\ \end {array} \]

[[_2nd_order, _missing_x]]

19.184

1269

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }-\left (2 \alpha -1\right ) y^{\prime }+\alpha \left (\alpha -1\right ) y&=0 \end {array} \]

[[_2nd_order, _missing_x]]

0.422

1270

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+\left (3-\alpha \right ) y^{\prime }-2 \left (\alpha -1\right ) y&=0 \end {array} \]

[[_2nd_order, _missing_x]]

0.648

1271

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 2 y^{\prime \prime }+3 y^{\prime }-2 y&=0\\ y \left (0\right )&=1\\ y^{\prime }\left (0\right )&=-\beta \\ \end {array} \]

[[_2nd_order, _missing_x]]

4.297

1272

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+5 y^{\prime }+6 y&=0\\ y \left (0\right )&=2\\ y^{\prime }\left (0\right )&=\beta \\ \end {array} \]

[[_2nd_order, _missing_x]]

0.649

1273

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }-2 y^{\prime }+2 y&=0 \end {array} \]

[[_2nd_order, _missing_x]]

0.997

1274

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }-2 y^{\prime }+6 y&=0 \end {array} \]

[[_2nd_order, _missing_x]]

0.488

1275

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+2 y^{\prime }-8 y&=0 \end {array} \]

[[_2nd_order, _missing_x]]

0.272

1276

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+2 y^{\prime }+2 y&=0 \end {array} \]

[[_2nd_order, _missing_x]]

0.327

1277

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+6 y^{\prime }+13 y&=0 \end {array} \]

[[_2nd_order, _missing_x]]

0.402

1278

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 4 y^{\prime \prime }+9 y&=0 \end {array} \]

[[_2nd_order, _missing_x]]

2.063

1279

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+2 y^{\prime }+\frac {5 y}{4}&=0 \end {array} \]

[[_2nd_order, _missing_x]]

0.369

1280

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 9 y^{\prime \prime }+9 y^{\prime }-4 y&=0 \end {array} \]

[[_2nd_order, _missing_x]]

0.394

1281

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+y^{\prime }+\frac {5 y}{4}&=0 \end {array} \]

[[_2nd_order, _missing_x]]

0.407

1282

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+4 y^{\prime }+\frac {25 y}{4}&=0 \end {array} \]

[[_2nd_order, _missing_x]]

3.951

1283

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+4 y&=0\\ y \left (0\right )&=0\\ y^{\prime }\left (0\right )&=1\\ \end {array} \]

[[_2nd_order, _missing_x]]

11.339

1284

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+4 y^{\prime }+5 y&=0\\ y \left (0\right )&=1\\ y^{\prime }\left (0\right )&=0\\ \end {array} \]

[[_2nd_order, _missing_x]]

0.700

1285

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }-2 y^{\prime }+5 y&=0\\ y \left (\frac {\pi }{2}\right )&=0\\ y^{\prime }\left (\frac {\pi }{2}\right )&=2\\ \end {array} \]

[[_2nd_order, _missing_x]]

0.678

1286

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+y&=0\\ y \left (\frac {\pi }{3}\right )&=2\\ y^{\prime }\left (\frac {\pi }{3}\right )&=-4\\ \end {array} \]

[[_2nd_order, _missing_x]]

46.971

1287

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+y^{\prime }+\frac {5 y}{4}&=0\\ y \left (0\right )&=3\\ y^{\prime }\left (0\right )&=1\\ \end {array} \]

[[_2nd_order, _missing_x]]

0.775

1288

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+2 y^{\prime }+2 y&=0\\ y \left (\frac {\pi }{4}\right )&=2\\ y^{\prime }\left (\frac {\pi }{4}\right )&=-2\\ \end {array} \]

[[_2nd_order, _missing_x]]

0.639

1289

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} u^{\prime \prime }-u^{\prime }+2 u&=0\\ u \left (0\right )&=2\\ u^{\prime }\left (0\right )&=0\\ \end {array} \]

[[_2nd_order, _missing_x]]

1.218

1290

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 5 u^{\prime \prime }+2 u^{\prime }+7 u&=0\\ u \left (0\right )&=2\\ u^{\prime }\left (0\right )&=1\\ \end {array} \]

[[_2nd_order, _missing_x]]

1.294

1291

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+2 y^{\prime }+6 y&=0\\ y \left (0\right )&=2\\ y^{\prime }\left (0\right )&=\alpha \\ \end {array} \]

[[_2nd_order, _missing_x]]

0.999

1292

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+2 a y^{\prime }+\left (a^{2}+1\right ) y&=0\\ y \left (0\right )&=1\\ y^{\prime }\left (0\right )&=0\\ \end {array} \]

[[_2nd_order, _missing_x]]

1.624

1293

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} t^{2} y^{\prime \prime }+y^{\prime } t +y&=0 \end {array} \]

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

6.010

1294

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} t^{2} y^{\prime \prime }+4 y^{\prime } t +2 y&=0 \end {array} \]

[[_2nd_order, _exact, _linear, _homogeneous]]

3.003

1295

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} t^{2} y^{\prime \prime }+3 y^{\prime } t +\frac {5 y}{4}&=0 \end {array} \]

[[_Emden, _Fowler]]

2.414

1296

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} t^{2} y^{\prime \prime }-4 y^{\prime } t -6 y&=0 \end {array} \]

[[_2nd_order, _exact, _linear, _homogeneous]]

1.961

1297

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} t^{2} y^{\prime \prime }-4 y^{\prime } t +6 y&=0 \end {array} \]

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

2.576

1298

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} t^{2} y^{\prime \prime }-y^{\prime } t +5 y&=0 \end {array} \]

[[_Emden, _Fowler]]

6.342

1299

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} t^{2} y^{\prime \prime }+3 y^{\prime } t -3 y&=0 \end {array} \]

[[_Emden, _Fowler]]

2.434

1300

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} t^{2} y^{\prime \prime }+7 y^{\prime } t +10 y&=0 \end {array} \]

[[_Emden, _Fowler]]

2.277