2.4.16 first order ode flip role

Table 2.1161: first order ode flip role [68]

#

ODE

CAS classification

Solved

Maple

Mma

Sympy

time(sec)

3001

\begin{align*} 1+x y \left (x y^{2}+1\right ) y^{\prime }&=0 \\ y \left (1\right ) &= 0 \\ \end{align*}

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

3.556

4386

\begin{align*} x&=y^{\prime } \sqrt {1+{y^{\prime }}^{2}} \\ \end{align*}

[_quadrature]

6.626

4408

\begin{align*} y^{\prime }&=\frac {1}{y x +x^{3} y^{3}} \\ \end{align*}

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

4.036

4718

\begin{align*} y^{\prime }+x \left (\sin \left (2 y\right )-x^{2} \cos \left (y\right )^{2}\right )&=0 \\ \end{align*}

[‘y=_G(x,y’)‘]

17.252

5270

\begin{align*} x \left (x^{3}-3 x^{3} y+4 y^{2}\right ) y^{\prime }&=6 y^{3} \\ \end{align*}

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

8.241

5324

\begin{align*} \left (x +2 y+2 x^{2} y^{3}+y^{4} x \right ) y^{\prime }+\left (1+y^{4}\right ) y&=0 \\ \end{align*}

[_rational]

7.650

5565

\begin{align*} x y {y^{\prime }}^{2}+\left (a +x^{2}-y^{2}\right ) y^{\prime }-y x&=0 \\ \end{align*}

[_rational]

252.651

5606

\begin{align*} 9 \left (-x^{2}+1\right ) y^{4} {y^{\prime }}^{2}+6 x y^{5} y^{\prime }+4 x^{2}&=0 \\ \end{align*}

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

1444.556

5654

\begin{align*} 2 x^{3} {y^{\prime }}^{3}+6 x^{2} y {y^{\prime }}^{2}-\left (1-6 y x \right ) y y^{\prime }+2 y^{3}&=0 \\ \end{align*}

[[_homogeneous, ‘class G‘]]

346.477

7880

\begin{align*} x -2 \sin \left (y\right )+3+\left (2 x -4 \sin \left (y\right )-3\right ) \cos \left (y\right ) y^{\prime }&=0 \\ \end{align*}

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

20.757

11606

\begin{align*} \left (\frac {y^{2}}{b}+\frac {x^{2}}{a}\right ) \left (x +y y^{\prime }\right )+\frac {\left (a -b \right ) \left (y y^{\prime }-x \right )}{a +b}&=0 \\ \end{align*}

[_rational]

21.279

11614

\begin{align*} \left (x^{2} y^{3}+y x \right ) y^{\prime }-1&=0 \\ \end{align*}

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

2.943

11621

\begin{align*} \left (x +2 y+2 x^{2} y^{3}+y^{4} x \right ) y^{\prime }+y^{5}+y&=0 \\ \end{align*}

[_rational]

4.546

11772

\begin{align*} a x y {y^{\prime }}^{2}-\left (a y^{2}+b \,x^{2}+c \right ) y^{\prime }+b x y&=0 \\ \end{align*}

[_rational]

192.034

11824

\begin{align*} 2 \left (y^{\prime } x +y\right )^{3}-y y^{\prime }&=0 \\ \end{align*}

[[_homogeneous, ‘class G‘]]

306.769

11838

\begin{align*} {y^{\prime }}^{n}-f \left (x \right ) g \left (y\right )&=0 \\ \end{align*}

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

7.770

11866

\begin{align*} y^{\prime }&=-\frac {\left (a \,x^{2}-2 F \left (y+\frac {a \,x^{4}}{8}\right )\right ) x}{2} \\ \end{align*}

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

9.563

11869

\begin{align*} y^{\prime }&=\frac {F \left (\frac {y}{\sqrt {x^{2}+1}}\right ) x}{\sqrt {x^{2}+1}} \\ \end{align*}

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

13.619

11927

\begin{align*} y^{\prime }&=-\frac {x^{2} \left (a x -2 \sqrt {a \left (a \,x^{4}+8 y\right )}\right )}{2} \\ \end{align*}

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

68.730

11953

\begin{align*} y^{\prime }&=\frac {i x \left (i-2 \sqrt {-x^{2}+4 \ln \left (a \right )+4 \ln \left (y\right )}\right ) y}{2} \\ \end{align*}

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

31.982

11983

\begin{align*} y^{\prime }&=\frac {1}{x \left (x y^{2}+1+x \right ) y} \\ \end{align*}

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

4.242

12009

\begin{align*} y^{\prime }&=\frac {\left (2 x +2+y\right ) y}{\left (\ln \left (y\right )+2 x -1\right ) \left (x +1\right )} \\ \end{align*}

[‘x=_G(y,y’)‘]

11.134

12052

\begin{align*} y^{\prime }&=\frac {2 y^{6}}{y^{3}+2+16 x y^{2}+32 x^{2} y^{4}} \\ \end{align*}

[_rational]

5.694

12078

\begin{align*} y^{\prime }&=\frac {y^{3} x \,{\mathrm e}^{3 x^{2}} {\mathrm e}^{-\frac {9 x^{2}}{2}}}{9 \,{\mathrm e}^{\frac {3 x^{2}}{2}}+3 \,{\mathrm e}^{\frac {3 x^{2}}{2}} y+9 y} \\ \end{align*}

[[_Abel, ‘2nd type‘, ‘class C‘]]

79.120

12080

\begin{align*} y^{\prime }&=\frac {\left (x +y+1\right ) y}{\left (x +y+2 y^{3}\right ) \left (x +1\right )} \\ \end{align*}

[_rational]

9.837

12097

\begin{align*} y^{\prime }&=\frac {\left (3+y\right )^{3} {\mathrm e}^{\frac {9 x^{2}}{2}} x \,{\mathrm e}^{\frac {3 x^{2}}{2}} {\mathrm e}^{-3 x^{2}}}{243 \,{\mathrm e}^{\frac {3 x^{2}}{2}}+81 \,{\mathrm e}^{\frac {3 x^{2}}{2}} y+243 y} \\ \end{align*}

[[_Abel, ‘2nd type‘, ‘class C‘]]

89.007

12107

\begin{align*} y^{\prime }&=\frac {\left (\left (x^{2}+1\right )^{{3}/{2}} x^{2}+\left (x^{2}+1\right )^{{3}/{2}}+y^{2} \left (x^{2}+1\right )^{{3}/{2}}+x^{2} y^{3}+y^{3}\right ) x}{\left (x^{2}+1\right )^{3}} \\ \end{align*}

[_Abel]

70.347

12114

\begin{align*} y^{\prime }&=\frac {\left (x +y+1\right ) y}{\left (y^{4}+y^{3}+y^{2}+x \right ) \left (x +1\right )} \\ \end{align*}

[_rational]

10.237

12118

\begin{align*} y^{\prime }&=\frac {y \left (x -y\right ) \left (1+y\right )}{x \left (y x +x -y\right )} \\ \end{align*}

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

27.123

12125

\begin{align*} y^{\prime }&=\frac {y \left (x +y\right ) \left (1+y\right )}{x \left (y x +x +y\right )} \\ \end{align*}

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

26.207

12198

\begin{align*} y^{\prime }&=\frac {2 y^{8}}{y^{5}+2 y^{6}+2 y^{2}+16 y^{4} x +32 y^{6} x^{2}+2+24 x y^{2}+96 x^{2} y^{4}+128 x^{3} y^{6}} \\ \end{align*}

[_rational]

6.589

12200

\begin{align*} y^{\prime }&=\frac {2 y^{6} \left (1+4 x y^{2}+y^{2}\right )}{y^{3}+4 x y^{5}+y^{5}+2+24 x y^{2}+96 x^{2} y^{4}+128 x^{3} y^{6}} \\ \end{align*}

[_rational]

18.177

12228

\begin{align*} y^{\prime }&=-\frac {216 y}{-216 y^{4}-252 y^{3}-396 y^{2}-216 y+36 x^{2}-72 y x +60 y^{5}-36 x y^{3}-72 x y^{2}-24 y^{4} x +4 y^{8}+12 y^{7}+33 y^{6}} \\ \end{align*}

[_rational]

7.743

12246

\begin{align*} y^{\prime }&=-\frac {1296 y}{216-1296 y+216 x^{2}-432 y x +216 x^{3}+1080 x y^{5}-570 y^{8}-315 y^{9}-882 y^{6}-2376 y^{2}+1080 x y^{3}-1728 y^{3}-324 x^{2} y^{3}+72 y^{8} x +216 y^{7} x +1152 y^{4} x -216 x^{2} y^{4}-1944 y^{4}-126 y^{10}-8 y^{12}-36 y^{11}-846 y^{7}-612 y^{5}-648 y^{2} x^{2}+216 x y^{2}-648 x^{2} y+594 x y^{6}} \\ \end{align*}

[_rational]

8.525

12250

\begin{align*} y^{\prime }&=-\frac {216 y \left (-2 y^{4}-3 y^{3}-6 y^{2}-6 y+6 x +6\right )}{-1296 y-1296 y x +216 x^{3}+1080 x y^{5}-18 y^{8}-315 y^{9}+2484 y^{6}-1296 y^{2}-648 x y^{3}+1728 y^{3}-324 x^{2} y^{3}+72 y^{8} x +216 y^{7} x -432 y^{4} x -216 x^{2} y^{4}+2808 y^{4}-126 y^{10}-8 y^{12}-36 y^{11}+594 y^{7}+4428 y^{5}-648 y^{2} x^{2}-1944 x y^{2}-648 x^{2} y+594 x y^{6}} \\ \end{align*}

[_rational]

14.376

15376

\begin{align*} \left (x^{2} y^{3}+y x \right ) y^{\prime }&=1 \\ \end{align*}

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

8.405

16155

\begin{align*} y^{\prime } x&=\arcsin \left (x^{2}\right ) \\ \end{align*}

[_quadrature]

5.585

17230

\begin{align*} {\mathrm e}^{y}-2 t y+\left (t \,{\mathrm e}^{y}-t^{2}\right ) y^{\prime }&=0 \\ y \left (0\right ) &= 0 \\ \end{align*}

[_exact]

6.704

17965

\begin{align*} y y^{\prime }+1&=\left (-1+x \right ) {\mathrm e}^{-\frac {y^{2}}{2}} \\ \end{align*}

[‘y=_G(x,y’)‘]

8.824

19085

\begin{align*} \left (x^{2} y^{3}+y x \right ) y^{\prime }&=1 \\ \end{align*}

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

4.968

19113

\begin{align*} {y^{\prime }}^{3}-x^{3} \left (1-y^{\prime }\right )&=0 \\ \end{align*}

[_quadrature]

48.233

19957

\begin{align*} \left (x^{2} y^{3}+y x \right ) y^{\prime }&=1 \\ \end{align*}

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

6.411

20280

\begin{align*} y^{\prime }+\frac {\tan \left (y\right )}{x}&=\frac {\tan \left (y\right ) \sin \left (y\right )}{x^{2}} \\ \end{align*}

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

52.243

20320

\begin{align*} y^{\prime }+\frac {\tan \left (y\right )}{x}&=\frac {\tan \left (y\right ) \sin \left (y\right )}{x^{2}} \\ \end{align*}

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

51.964

20476

\begin{align*} x y {y^{\prime }}^{2}-\left (x^{2}+y^{2}-1\right ) y^{\prime }+y x&=0 \\ \end{align*}

[_rational]

289.888

20690

\begin{align*} y^{\prime }+x \sin \left (2 y\right )&=x^{3} \cos \left (y\right )^{2} \\ \end{align*}

[‘y=_G(x,y’)‘]

31.300

21454

\begin{align*} y^{\prime }&=\frac {1}{x^{2} y^{3}+y x} \\ \end{align*}

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

9.372

21839

\begin{align*} y^{3} \left (x +y y^{\prime }\right )&=\left (x^{2}+y^{2}\right )^{3} y^{\prime } \\ \end{align*}

[_rational]

45.909

22340

\begin{align*} y^{\prime }&=\frac {1}{x^{2}+y^{2}} \\ y \left (0\right ) &= 1 \\ \end{align*}

[‘y=_G(x,y’)‘]

11.496

22341

\begin{align*} y^{\prime }&=\frac {1}{x^{2}+y^{2}} \\ y \left (0\right ) &= 0 \\ \end{align*}

[‘y=_G(x,y’)‘]

7.605

22344

\begin{align*} y^{\prime }&=\frac {1}{x^{2}-y^{2}} \\ y \left (1\right ) &= 2 \\ \end{align*}

[‘y=_G(x,y’)‘]

14.316

22354

\begin{align*} y^{\prime }&=\frac {1}{x^{2}+4 y^{2}} \\ \end{align*}

[‘y=_G(x,y’)‘]

12.457

22473

\begin{align*} x^{3}+2 x y^{2}-x +\left (x^{2} y+2 y^{3}-2 y\right ) y^{\prime }&=0 \\ \end{align*}

[_rational]

82.756

23146

\begin{align*} y^{4}+\left (x^{2}-3 y\right ) y^{\prime }&=0 \\ \end{align*}

[_rational]

17.940

23863

\begin{align*} x \left (\left (x^{2}+y^{2}\right )^{{3}/{2}}+2 y^{2}\right )+y \left (\left (x^{2}+y^{2}\right )^{{3}/{2}}-2 x^{2}\right ) y^{\prime }&=0 \\ \end{align*}

[‘y=_G(x,y’)‘]

252.559

23945

\begin{align*} y^{\prime }&=\frac {1}{x^{5}+y x} \\ \end{align*}

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

96.440

24317

\begin{align*} \sin \left (y\right ) \left (x +\sin \left (y\right )\right )+2 x^{2} \cos \left (y\right ) y^{\prime }&=0 \\ \end{align*}

[‘y=_G(x,y’)‘]

98.533

24326

\begin{align*} 3 \sin \left (y\right )-5 x +2 x^{2} \cot \left (y\right ) y^{\prime }&=0 \\ \end{align*}

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

49.456

25865

\begin{align*} \sin \left (x \right ) y^{\prime }-\cos \left (x \right ) x&=\cot \left (x \right ) \\ \end{align*}

[_quadrature]

6.425

26088

\begin{align*} \left (x^{2} y^{3}+y x \right ) y^{\prime }&=1 \\ \end{align*}

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

27.658

26250

\begin{align*} x^{3} y^{\prime }-\cos \left (y\right )&=1 \\ y \left (\infty \right ) &= 5 \pi \\ \end{align*}

[_separable]

10.692

26291

\begin{align*} \left (x^{2} y^{3}+y x \right ) y^{\prime }&=1 \\ \end{align*}

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

32.635

26305

\begin{align*} y^{\prime }+\sin \left (y\right )+x \cos \left (y\right )+x&=0 \\ \end{align*}

[‘y=_G(x,y’)‘]

51.526

27378

\begin{align*} x&=y^{\prime } \sqrt {1+{y^{\prime }}^{2}} \\ \end{align*}

[_quadrature]

73.030

27494

\begin{align*} y^{\prime }+\tan \left (y\right )&=x \sec \left (y\right ) \\ \end{align*}

[‘y=_G(x,y’)‘]

84.556

27495

\begin{align*} {y^{\prime }}^{4}&=4 y \left (y^{\prime } x -2 y\right )^{2} \\ \end{align*}

[[_homogeneous, ‘class G‘]]

1371.358

27520

\begin{align*} \tan \left (y\right ) y^{\prime }+4 \cos \left (y\right ) x^{3}&=2 x \\ \end{align*}

[‘y=_G(x,y’)‘]

218.609

27521

\begin{align*} \tan \left (y\right ) y^{\prime }+4 \cos \left (y\right ) x^{3}&=2 x \\ \end{align*}

[‘y=_G(x,y’)‘]

197.723