2.1.8 Problems 701 to 800

Table 2.15: Problems not solved by Mathematica

#

ODE

Mathematica

Maple

11240

\[ {}8 \left (1+y^{\prime }\right )^{3} = 27 \left (x +y\right ) \left (-y^{\prime }+1\right )^{3} \]

11310

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

11311

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

11329

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

11331

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

11404

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

11415

\[ {}\cos \left (\theta \right ) v^{\prime }+v = 3 \]

11589

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

11590

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

11599

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

11604

\[ {}\frac {2 y^{\frac {3}{2}}+1}{x^{\frac {1}{3}}}+\left (3 \sqrt {x}\, \sqrt {y}-1\right ) y^{\prime } = 0 \]

11610

\[ {}\frac {1+8 x y^{\frac {2}{3}}}{x^{\frac {2}{3}} y^{\frac {1}{3}}}+\frac {\left (2 x^{\frac {4}{3}} y^{\frac {2}{3}}-x^{\frac {1}{3}}\right ) y^{\prime }}{y^{\frac {4}{3}}} = 0 \]

11995

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

12050

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

12127

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

12129

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

12134

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

12148

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

12198

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

12214

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

12220

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

12223

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

12226

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

12227

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

12238

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

12239

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

12240

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

12241

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

12243

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

12248

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

12249

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

12250

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

12251

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

12252

\[ {}\sin \left (x \right ) y^{\prime \prime }+x y^{\prime }+7 y = 1 \]

12256

\[ {}y^{\prime \prime }+\frac {k x}{y^{4}} = 0 \]

12258

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

12264

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

12269

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

12281

\[ {}y^{\prime \prime }+\frac {\left (-1+x \right ) y^{\prime }}{x}+\frac {y}{x^{3}} = \frac {{\mathrm e}^{-\frac {1}{x}}}{x^{3}} \]

12352

\[ {}t^{2} y^{\prime \prime }-6 t y^{\prime }+\sin \left (2 t \right ) y = \ln \left (t \right ) \]

12354

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

12412

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

12495

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

12570

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

12571

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

12614

\[ {}x^{2} y^{\prime \prime }-4 x y^{\prime }+6 y = 0 \]

12631

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

12636

\[ {}y^{\prime } = \frac {1}{\sqrt {15-x^{2}-y^{2}}} \]

12748

\[ {}\sqrt {1-x}\, y^{\prime \prime }-4 y = \sin \left (x \right ) \]

12749

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

12827

\[ {}\left [y_{1}^{\prime }\left (x \right ) = \sin \left (x \right ) y_{1} \left (x \right )+\sqrt {x}\, y_{2} \left (x \right )+\ln \left (x \right ), y_{2}^{\prime }\left (x \right ) = \tan \left (x \right ) y_{1} \left (x \right )-{\mathrm e}^{x} y_{2} \left (x \right )+1\right ] \]

12828

\[ {}\left [y_{1}^{\prime }\left (x \right ) = \sin \left (x \right ) y_{1} \left (x \right )+\sqrt {x}\, y_{2} \left (x \right )+\ln \left (x \right ), y_{2}^{\prime }\left (x \right ) = \tan \left (x \right ) y_{1} \left (x \right )-{\mathrm e}^{x} y_{2} \left (x \right )+1\right ] \]

12829

\[ {}\left [y_{1}^{\prime }\left (x \right ) = {\mathrm e}^{-x} y_{1} \left (x \right )-\sqrt {1+x}\, y_{2} \left (x \right )+x^{2}, y_{2}^{\prime }\left (x \right ) = \frac {y_{1} \left (x \right )}{\left (-2+x \right )^{2}}\right ] \]

12830

\[ {}\left [y_{1}^{\prime }\left (x \right ) = {\mathrm e}^{-x} y_{1} \left (x \right )-\sqrt {1+x}\, y_{2} \left (x \right )+x^{2}, y_{2}^{\prime }\left (x \right ) = \frac {y_{1} \left (x \right )}{\left (-2+x \right )^{2}}\right ] \]

12842

\[ {}[y_{1}^{\prime }\left (x \right ) = 2 x y_{1} \left (x \right )-x^{2} y_{2} \left (x \right )+4 x, y_{2}^{\prime }\left (x \right ) = {\mathrm e}^{x} y_{1} \left (x \right )+3 \,{\mathrm e}^{-x} y_{2} \left (x \right )-\cos \left (3 x \right )] \]

12910

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

12911

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

12914

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

12935

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

12936

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

12938

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

12962

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

12965

\[ {}w^{\prime } = w \cos \left (w\right ) \]

12966

\[ {}w^{\prime } = w \cos \left (w\right ) \]

12967

\[ {}w^{\prime } = w \cos \left (w\right ) \]

13034

\[ {}y^{\prime } = \left (y-3\right ) \left (\sin \left (y\right ) \sin \left (t \right )+\cos \left (t \right )+1\right ) \]

13057

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

13250

\[ {}y^{2} y^{\prime \prime } = 8 x^{2} \]

13289

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

13348

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

13520

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

13523

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

13524

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

13529

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

13535

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

13559

\[ {}x^{3} y^{\prime \prime \prime }-4 y^{\prime \prime }+10 y^{\prime }-12 y = 0 \]

13569

\[ {}x^{2} y^{\prime \prime }-4 x y^{\prime }+6 y = 0 \]

13570

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

14043

\[ {}[x^{\prime }\left (t \right ) = x \left (t \right ) y \left (t \right )-6 y \left (t \right ), y^{\prime }\left (t \right ) = x \left (t \right )-y \left (t \right )-5] \]

14046

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

14050

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

14051

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

14101

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

14121

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

14126

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

14133

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

14201

\[ {}1 = \cos \left (y\right ) y^{\prime } \]

14296

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

14313

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

14323

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

14327

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

14328

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

14378

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

14384

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

14439

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

14440

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

14441

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

14472

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

14473

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

14516

\[ {}{y^{\prime \prime }}^{2}-5 y^{\prime \prime } y^{\prime }+4 y^{2} = 0 \]