2.2.268 Problems 26701 to 26800

Table 2.553: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

Maple

Mma

Sympy

time(sec)

26701

\begin{align*} y^{\prime \prime \prime \prime }-2 y^{\prime \prime \prime }+2 y^{\prime \prime }-2 y^{\prime }+y&=\cos \left (2 x \right ) \\ y \left (0\right ) &= {\frac {1}{25}} \\ y \left (\pi \right ) &= {\frac {1}{25}} \\ y^{\prime }\left (0\right ) &= {\frac {2}{15}} \\ y^{\prime }\left (\pi \right ) &= {\frac {2}{25}} \\ \end{align*}

[[_high_order, _linear, _nonhomogeneous]]

0.418

26702

\begin{align*} x y^{\prime \prime }+y^{\prime }&=0 \\ \end{align*}

[[_2nd_order, _missing_y]]

0.744

26703

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

[[_high_order, _missing_y]]

0.487

26704

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

[[_high_order, _missing_y]]

0.517

26705

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

Series expansion around \(x=0\).

[_separable]

0.487

26706

\begin{align*} 4 x y^{\prime }+2 y^{\prime }+y&=0 \\ \end{align*}

Series expansion around \(x=0\).

[_separable]

0.298

26707

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

Series expansion around \(x=0\).

[_separable]

0.270

26708

\begin{align*} 9 x \left (1-x \right ) y^{\prime \prime }-12 y^{\prime }+4 y&=0 \\ \end{align*}

Series expansion around \(x=0\).

[_Jacobi]

0.722

26709

\begin{align*} y^{\prime \prime }+x y^{\prime }+y&=0 \\ \end{align*}

Series expansion around \(x=0\).

[[_2nd_order, _exact, _linear, _homogeneous]]

0.251

26710

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

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

0.260

26711

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

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

0.264

26712

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

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

0.286

26713

\begin{align*} y^{\prime \prime }-y \,{\mathrm e}^{x}&=0 \\ \end{align*}

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

0.382

26714

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

Series expansion around \(x=0\).

[[_Riccati, _special]]

0.229

26715

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

Series expansion around \(x=0\).

[‘y=_G(x,y’)‘]

0.366

26716

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

[[_2nd_order, _with_linear_symmetries]]

0.357

26717

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

[[_2nd_order, _with_linear_symmetries]]

0.454

26718

\begin{align*} y^{\prime \prime }+\frac {y^{\prime }}{x}+\frac {y}{9}&=0 \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.297

26719

\begin{align*} y^{\prime \prime }+\frac {y^{\prime }}{x}+4 y&=0 \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.293

26720

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

[[_2nd_order, _with_linear_symmetries]]

0.358

26721

\begin{align*} x y^{\prime \prime }+\frac {y^{\prime }}{2}+\frac {y}{4}&=0 \\ \end{align*}

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

2.135

26722

\begin{align*} y^{\prime \prime }+\frac {5 y^{\prime }}{x}+y&=0 \\ \end{align*}

[_Lienard]

0.336

26723

\begin{align*} y^{\prime \prime }+\frac {3 y^{\prime }}{x}+4 y&=0 \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.343

26724

\begin{align*} x y^{\prime \prime }+y&=0 \\ \end{align*}

[[_Emden, _Fowler]]

0.182

26725

\begin{align*} x y^{\prime \prime }+\frac {y^{\prime }}{2}+\frac {y}{4}&=0 \\ \end{align*}

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

1.275

26726

\begin{align*} x^{\prime }&=3-2 y \\ y^{\prime }&=2 x-2 t \\ \end{align*}

system_of_ODEs

0.745

26727

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

system_of_ODEs

0.563

26728

\begin{align*} x^{\prime }+3 x+y&=0 \\ y^{\prime }+y-x&=0 \\ \end{align*}

system_of_ODEs

0.345

26729

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

system_of_ODEs

0.640

26730

\begin{align*} x^{\prime }&=-7 x+y \\ y^{\prime }&=-2 x-5 y \\ \end{align*}

system_of_ODEs

0.553

26731

\begin{align*} x^{\prime }&=2 x-9 y \\ y^{\prime }&=x+8 y \\ \end{align*}

system_of_ODEs

0.357

26732

\begin{align*} x^{\prime }&=y+z \\ y^{\prime }&=x+z \\ z^{\prime }&=x+y \\ \end{align*}

system_of_ODEs

0.595

26733

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

system_of_ODEs

0.774

26734

\begin{align*} x^{\prime }&=8 y \\ y^{\prime }&=-2 z \\ z^{\prime }&=2 x+8 y-2 z \\ \end{align*}

system_of_ODEs

0.905

26735

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

system_of_ODEs

1.511

26736

\begin{align*} x^{\prime }&=-x+y+z+{\mathrm e}^{t} \\ y^{\prime }&=x-y+z+{\mathrm e}^{3 t} \\ z^{\prime }&=x+y+z+4 \\ \end{align*}

system_of_ODEs

1.391

26737

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

system_of_ODEs

0.033

26738

\begin{align*} x^{\prime }&={\mathrm e}^{t}-y-5 x \\ y^{\prime }&={\mathrm e}^{2 t}+x-3 y \\ \end{align*}

With initial conditions

\begin{align*} x \left (0\right ) &= {\frac {119}{900}} \\ y \left (0\right ) &= {\frac {211}{900}} \\ \end{align*}

system_of_ODEs

0.756

26739

\begin{align*} x^{\prime }&=3 x+8 y \\ y^{\prime }&=-x-3 y \\ \end{align*}

With initial conditions

\begin{align*} x \left (0\right ) &= 6 \\ y \left (0\right ) &= -2 \\ \end{align*}

system_of_ODEs

0.472

26740

\begin{align*} x^{\prime }&=y \\ y^{\prime }&=-x \\ \end{align*}

With initial conditions

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

system_of_ODEs

0.429

26741

\begin{align*} x^{\prime }&=-4 x-4 y \\ x^{\prime }+4 y^{\prime }&=-4 y \\ \end{align*}

With initial conditions

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

system_of_ODEs

0.409

26742

\begin{align*} x^{\prime }&=4 x-5 y \\ y^{\prime }&=x \\ \end{align*}

With initial conditions

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

system_of_ODEs

0.553

26743

\begin{align*} x^{\prime }&=x+y+t \\ y^{\prime }&=x-2 y+2 t \\ \end{align*}

With initial conditions

\begin{align*} x \left (0\right ) &= -{\frac {7}{9}} \\ y \left (0\right ) &= -{\frac {5}{9}} \\ \end{align*}

system_of_ODEs

1.418

26744

\begin{align*} x^{\prime }&=x+5 y \\ y^{\prime }&=-x-3 y \\ \end{align*}

With initial conditions

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

system_of_ODEs

0.573

26745

\begin{align*} x^{\prime }+2 y^{\prime }&=17 x+8 y \\ 13 x^{\prime }&=53 x+2 y \\ \end{align*}

With initial conditions

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

system_of_ODEs

0.494

26746

\begin{align*} x^{\prime }&=y \\ x^{\prime }-y^{\prime }&=x+y \\ \end{align*}

With initial conditions

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

system_of_ODEs

0.411

26747

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

With initial conditions

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

system_of_ODEs

0.702

26748

\begin{align*} 2 x^{\prime }&=6 x-y-6 t^{2}-t +3 \\ y^{\prime }&=2 y-2 t -1 \\ \end{align*}

With initial conditions

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

system_of_ODEs

0.656

26749

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

system_of_ODEs

0.031

26750

\begin{align*} x^{\prime } t&=t -2 x \\ t y^{\prime }&=x t +y t +2 x-t \\ \end{align*}

system_of_ODEs

0.037

26751

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

[[_linear, ‘class A‘]]

1.512

26752

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

[_linear]

2.000

26753

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

[[_linear, ‘class A‘]]

2.790

26754

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

[_quadrature]

0.481

26755

\begin{align*} x^{\prime }&=x-13 y \\ y^{\prime }&=\frac {x}{4}-2 y \\ \end{align*}

With initial conditions

\begin{align*} x \left (0\right ) &= 0 \\ y \left (0\right ) &= 0 \\ \end{align*}

system_of_ODEs

0.586

26756

\begin{align*} x^{\prime }&=-x-3 y \\ y^{\prime }&=x-y \\ \end{align*}

With initial conditions

\begin{align*} x \left (0\right ) &= 0 \\ y \left (0\right ) &= 0 \\ \end{align*}

system_of_ODEs

0.546

26757

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

system_of_ODEs

0.534

26758

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

system_of_ODEs

0.523

26759

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

system_of_ODEs

0.580

26760

\begin{align*} x^{\prime }&=-2 x-y \\ y^{\prime }&=3 x-y \\ \end{align*}

system_of_ODEs

0.794

26761

\begin{align*} x^{\prime }&=3 x+7 y \\ y^{\prime }&=2 x+5 y \\ \end{align*}

system_of_ODEs

0.596

26762

\begin{align*} x^{\prime }&=-2 x+\frac {5 y}{7} \\ y^{\prime }&=7 x-3 y \\ \end{align*}

system_of_ODEs

0.615

26763

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

system_of_ODEs

0.342

26764

\begin{align*} x^{\prime }&=-x-y \\ y^{\prime }&=x-3 y \\ \end{align*}

system_of_ODEs

0.338

26765

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

system_of_ODEs

0.260

26766

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

system_of_ODEs

0.612

26767

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

system_of_ODEs

0.051

26768

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

system_of_ODEs

0.040

26769

\begin{align*} x^{\prime }&=-2 x+8 \sin \left (y\right )^{2} \\ y^{\prime }&=x-3 y+4 x^{3} \\ \end{align*}

system_of_ODEs

0.038

26770

\begin{align*} x^{\prime }&=3 x-22 \sin \left (y\right )+x^{2}-y^{3} \\ y^{\prime }&=\sin \left (x\right )-5 y+{\mathrm e}^{x^{2}}-1 \\ \end{align*}

system_of_ODEs

0.037

26771

\begin{align*} x^{\prime }&=-10 x+4 \,{\mathrm e}^{y}-4 \cos \left (y^{2}\right ) \\ y^{\prime }&=2 \,{\mathrm e}^{x}-2-y+x^{4} \\ \end{align*}

system_of_ODEs

0.045

26772

\begin{align*} x^{\prime }&=7 x+2 \sin \left (y\right )-4 y^{4} \\ y^{\prime }&={\mathrm e}^{x}-3 y-1+\frac {5 x^{2}}{2} \\ \end{align*}

system_of_ODEs

0.040

26773

\begin{align*} x^{\prime }&=-\frac {2 x}{3}+\frac {\sin \left (2 y\right )}{2}-x^{3} y \\ y^{\prime }&=-y-2 x+x^{4}-y^{7} \\ \end{align*}

system_of_ODEs

0.042

26774

\begin{align*} x^{\prime }&=\frac {5 x \,{\mathrm e}^{x}}{2}-3 y+\sin \left (x^{2}\right ) \\ y^{\prime }&=2 x+y \,{\mathrm e}^{-\frac {y^{2}}{2}}-y^{4} \cos \left (x\right ) \\ \end{align*}

system_of_ODEs

0.054

26775

\begin{align*} x^{\prime }&=\frac {3 \sin \left (x\right )}{4}-7 y \left (1-y\right )^{{1}/{3}}+x^{3} \\ y^{\prime }&=\frac {2 x}{3}-3 y \cos \left (y\right )-11 y^{5} \\ \end{align*}

system_of_ODEs

0.043

26776

\begin{align*} x^{\prime }&=\frac {{\mathrm e}^{x}}{4}-\frac {1}{4}-9 y+x^{4} \\ y^{\prime }&=\frac {x}{5}-\sin \left (y\right )+y^{14} \\ \end{align*}

system_of_ODEs

0.039

26777

\begin{align*} x^{\prime }&=5 x+y \cos \left (y\right )-\frac {x^{3}}{3} \\ y^{\prime }&=3 x+2 y+\frac {x^{4}}{12}-y^{3} {\mathrm e}^{y} \\ \end{align*}

system_of_ODEs

0.058

26778

\begin{align*} 2 y-3 y^{\prime }+y^{\prime \prime \prime }&=0 \\ \end{align*}

[[_3rd_order, _missing_x]]

0.076

26779

\begin{align*} y^{\prime \prime \prime \prime }+4 y^{\prime \prime \prime }+7 y^{\prime \prime }+6 y^{\prime }+2 y&=0 \\ \end{align*}

[[_high_order, _missing_x]]

0.063

26780

\begin{align*} y^{\prime \prime \prime }+5 y^{\prime \prime }+9 y^{\prime }+5 y&=0 \\ \end{align*}

[[_3rd_order, _missing_x]]

0.050

26781

\begin{align*} y^{\prime \prime \prime \prime }-2 y^{\prime \prime \prime }+y^{\prime \prime }+2 y^{\prime }-2 y&=0 \\ \end{align*}

[[_high_order, _missing_x]]

0.053

26782

\begin{align*} y^{\prime \prime \prime \prime }+7 y^{\prime \prime \prime }+17 y^{\prime \prime }+17 y^{\prime }+6 y&=0 \\ \end{align*}

[[_high_order, _missing_x]]

0.053

26783

\begin{align*} y^{\prime \prime \prime }-3 y^{\prime \prime }+12 y^{\prime }-10 y&=0 \\ \end{align*}

[[_3rd_order, _missing_x]]

0.053

26784

\begin{align*} y^{\prime \prime \prime \prime }+5 y^{\prime \prime \prime }+18 y^{\prime \prime }+34 y^{\prime }+20 y&=0 \\ \end{align*}

[[_high_order, _missing_x]]

0.056

26785

\begin{align*} y^{\prime \prime \prime \prime }+7 y^{\prime \prime \prime }+19 y^{\prime \prime }+23 y^{\prime }+10 y&=0 \\ \end{align*}

[[_high_order, _missing_x]]

0.054

26786

\begin{align*} y^{\prime \prime \prime \prime }+11 y^{\prime \prime \prime }+41 y^{\prime \prime }+61 y^{\prime }+30 y&=0 \\ \end{align*}

[[_high_order, _missing_x]]

0.042

26787

\begin{align*} y^{\left (5\right )}+3 y^{\prime \prime \prime \prime }-5 y^{\prime \prime \prime }-15 y^{\prime \prime }+4 y^{\prime }+12 y&=0 \\ \end{align*}

[[_high_order, _missing_x]]

0.059

26788

\begin{align*} y^{\left (5\right )}+7 y^{\prime \prime \prime \prime }+33 y^{\prime \prime \prime }+88 y^{\prime \prime }+122 y^{\prime }+60 y&=0 \\ \end{align*}

[[_high_order, _missing_x]]

0.089

26789

\begin{align*} y^{\prime \prime \prime }+2 y^{\prime \prime }+\alpha y^{\prime }+3 y&=0 \\ \end{align*}

[[_3rd_order, _missing_x]]

0.130

26790

\begin{align*} y^{\prime \prime \prime \prime }+\alpha y^{\prime \prime \prime }+2 y^{\prime \prime }+y^{\prime }+3 y&=0 \\ \end{align*}

[[_high_order, _missing_x]]

0.051

26791

\begin{align*} y^{\prime \prime \prime \prime }+2 y^{\prime \prime \prime }+\alpha y^{\prime \prime }+y^{\prime }+y&=0 \\ \end{align*}

[[_high_order, _missing_x]]

0.052

26792

\begin{align*} y^{\prime \prime \prime }+\alpha y^{\prime \prime }+\beta y^{\prime }+y&=0 \\ \end{align*}

[[_3rd_order, _missing_x]]

0.127

26793

\begin{align*} y^{\prime \prime \prime \prime }+3 y^{\prime \prime \prime }+\alpha y^{\prime \prime }+2 y^{\prime }+\beta y&=0 \\ \end{align*}

[[_high_order, _missing_x]]

0.042

26794

\begin{align*} 2 y^{\prime \prime \prime }+7 y^{\prime \prime }+7 y^{\prime }+2 y&=0 \\ \end{align*}

[[_3rd_order, _missing_x]]

0.046

26795

\begin{align*} y^{\prime \prime \prime }+2 y^{\prime \prime }+2 y^{\prime }+y&=0 \\ \end{align*}

[[_3rd_order, _missing_x]]

0.051

26796

\begin{align*} 2 y^{\prime \prime \prime \prime }+13 y^{\prime \prime \prime }+28 y^{\prime \prime }+23 y^{\prime }+6 y&=0 \\ \end{align*}

[[_high_order, _missing_x]]

0.054

26797

\begin{align*} 3 y^{\prime \prime \prime \prime }+13 y^{\prime \prime \prime }+19 y^{\prime \prime }+11 y^{\prime }+2 y&=0 \\ \end{align*}

[[_high_order, _missing_x]]

0.056

26798

\begin{align*} 2 y^{\prime \prime \prime \prime }+6 y^{\prime \prime \prime }+9 y^{\prime \prime }+6 y^{\prime }+2 y&=0 \\ \end{align*}

[[_high_order, _missing_x]]

0.062

26799

\begin{align*} y^{\prime \prime \prime \prime }+4 y^{\prime \prime \prime }+16 y^{\prime \prime }+24 y^{\prime }+20 y&=0 \\ \end{align*}

[[_high_order, _missing_x]]

0.053

26800

\begin{align*} y^{\left (5\right )}+13 y^{\prime \prime \prime \prime }+43 y^{\prime \prime \prime }+51 y^{\prime \prime }+40 y^{\prime }+12 y&=0 \\ \end{align*}

[[_high_order, _missing_x]]

0.083