2.2.158 Problems 15701 to 15800

Table 2.333: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

Maple

Mma

Sympy

time(sec)

15701

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

Using Laplace transform method.

[_quadrature]

0.895

15702

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

Using Laplace transform method.

[[_linear, ‘class A‘]]

8.240

15703

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

Using Laplace transform method.

[[_2nd_order, _with_linear_symmetries]]

1.214

15704

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

Using Laplace transform method.

[[_2nd_order, _with_linear_symmetries]]

0.950

15705

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }-y^{\prime }+6 y&=-2 \sin \left (3 x \right )\\ y \left (0\right )&=0\\ y^{\prime }\left (0\right )&=-1\\ \end {array} \]

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

1.224

15706

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

Using Laplace transform method.

[[_2nd_order, _with_linear_symmetries]]

0.935

15707

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

Using Laplace transform method.

[[_3rd_order, _missing_y]]

1.340

15708

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

Using Laplace transform method.

[_quadrature]

1.011

15709

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

Using Laplace transform method.

[[_linear, ‘class A‘]]

0.923

15710

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

Using Laplace transform method.

[[_2nd_order, _missing_x]]

0.785

15711

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+9 y&=18 \,{\mathrm e}^{3 x}\\ y \left (0\right )&=-1\\ y^{\prime }\left (0\right )&=6\\ \end {array} \]

Using Laplace transform method.

[[_2nd_order, _with_linear_symmetries]]

0.913

15712

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

Using Laplace transform method.

[[_2nd_order, _missing_x]]

0.588

15713

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }-y^{\prime }-2 y&=x^{2}\\ y \left (0\right )&={\frac {11}{4}}\\ y^{\prime }\left (0\right )&={\frac {1}{2}}\\ \end {array} \]

Using Laplace transform method.

[[_2nd_order, _with_linear_symmetries]]

0.930

15714

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

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

8.140

15715

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

Using Laplace transform method.

[[_3rd_order, _missing_x]]

0.787

15716

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

Using Laplace transform method.

[[_linear, ‘class A‘]]

3.655

15717

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

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

1.952

15718

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

Using Laplace transform method.

[[_2nd_order, _missing_y]]

4.269

15719

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

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

2.955

15720

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} 4 y+y^{\prime \prime }&=\left \{\begin {array}{cc} 0 & 0\le x <\pi \\ -\sin \left (3 x \right ) & \pi \le x \end {array}\right .\\ y \left (0\right )&=1\\ y^{\prime }\left (0\right )&=1\\ \end {array} \]

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

18.754

15721

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

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

2.185

15722

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

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

9.972

15723

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

Using Laplace transform method.

[[_linear, ‘class A‘]]

3.318

15724

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

Using Laplace transform method.

[[_linear, ‘class A‘]]

5.607

15725

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+9 y&=\delta \left (x -\pi \right )+\delta \left (x -3 \pi \right )\\ y \left (0\right )&=0\\ y^{\prime }\left (0\right )&=0\\ \end {array} \]

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

8.593

15726

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

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

1.398

15727

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }-2 y^{\prime }+5 y&=\cos \left (x \right )+2 \delta \left (x -\pi \right )\\ y \left (0\right )&=1\\ y^{\prime }\left (0\right )&=0\\ \end {array} \]

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

1.064

15728

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

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

0.880

15729

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

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

1.313

15730

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y_{1}^{\prime }&=2 y_{1}-3 y_{2}\\ y_{2}^{\prime }&=y_{1}-2 y_{2}\\ \end {array} \]

system_of_ODEs

0.802

15731

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y_{1}^{\prime }&=y_{1}-2 y_{2}\\ y_{2}^{\prime }&=y_{1}+3 y_{2}\\ \end {array} \]

system_of_ODEs

1.126

15732

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y_{1}^{\prime }&=y_{1}+2 y_{2}+x -1\\ y_{2}^{\prime }&=3 y_{1}+2 y_{2}-5 x -2\\ \end {array} \]

system_of_ODEs

1.230

15733

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y_{1}^{\prime }&=\frac {2 y_{1}}{x}-\frac {y_{2}}{x^{2}}-3+\frac {1}{x}-\frac {1}{x^{2}}\\ y_{2}^{\prime }&=2 y_{1}+1-6 x\\ \end {array} \]

system_of_ODEs

0.040

15734

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y_{1}^{\prime }&=\frac {5 y_{1}}{x}+\frac {4 y_{2}}{x}-2 x\\ y_{2}^{\prime }&=-\frac {6 y_{1}}{x}-\frac {5 y_{2}}{x}+5 x\\ \end {array} \]

system_of_ODEs

0.038

15735

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y_{1}^{\prime }&=3 y_{1}-2 y_{2}\\ y_{2}^{\prime }&=y_{2}-y_{1}\\ \end {array} \]

system_of_ODEs

1.231

15736

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y_{1}^{\prime }&=\sin \left (x \right ) y_{1}+\sqrt {x}\, y_{2}+\ln \left (x \right )\\ y_{2}^{\prime }&=\tan \left (x \right ) y_{1}-{\mathrm e}^{x} y_{2}+1\\ \end {array} \]

system_of_ODEs

0.047

15737

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y_{1}^{\prime }&=\sin \left (x \right ) y_{1}+\sqrt {x}\, y_{2}+\ln \left (x \right )\\ y_{2}^{\prime }&=\tan \left (x \right ) y_{1}-{\mathrm e}^{x} y_{2}+1\\ \end {array} \]

system_of_ODEs

0.041

15738

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

system_of_ODEs

0.041

15739

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

system_of_ODEs

0.045

15740

\(\left [\begin {array}{cc} -2 & -4 \\ 1 & 3 \end {array}\right ]\)

Eigenvectors

N/A

N/A

N/A

0.514

15741

\(\left [\begin {array}{cc} -3 & -1 \\ 2 & -1 \end {array}\right ]\)

Eigenvectors

N/A

N/A

N/A

0.711

15742

\(\left [\begin {array}{ccc} 1 & 0 & 1 \\ 0 & 1 & -1 \\ -2 & 0 & -1 \end {array}\right ]\)

Eigenvectors

N/A

N/A

N/A

0.918

15743

\(\left [\begin {array}{ccc} 3 & 1 & -1 \\ 1 & 3 & -1 \\ 3 & 3 & -1 \end {array}\right ]\)

Eigenvectors

N/A

N/A

N/A

0.760

15744

\(\left [\begin {array}{ccc} 7 & -1 & 6 \\ -10 & 4 & -12 \\ -2 & 1 & -1 \end {array}\right ]\)

Eigenvectors

N/A

N/A

N/A

8.032

15745

\(\left [\begin {array}{cccc} 1 & 1 & 1 & 1 \\ 1 & 1 & 1 & 1 \\ 1 & 1 & 1 & 1 \\ 1 & 1 & 1 & 1 \end {array}\right ]\)

Eigenvectors

N/A

N/A

N/A

0.988

15746

\(\left [\begin {array}{cccc} 1 & 3 & 5 & 7 \\ 2 & 6 & 10 & 14 \\ 3 & 9 & 15 & 21 \\ 6 & 18 & 30 & 42 \end {array}\right ]\)

Eigenvectors

N/A

N/A

N/A

1.047

15747

\(\left [\begin {array}{ccccc} 1 & 3 & 5 & 2 & 4 \\ 5 & 2 & 4 & 1 & 3 \\ 4 & 1 & 3 & 5 & 2 \\ 3 & 5 & 2 & 4 & 1 \\ 2 & 4 & 1 & 3 & 5 \end {array}\right ]\)

Eigenvectors

N/A

N/A

N/A

29.200

15748

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y_{1}^{\prime }&=2 y_{1}-3 y_{2}+5 \,{\mathrm e}^{x}\\ y_{2}^{\prime }&=y_{1}+4 y_{2}-2 \,{\mathrm e}^{-x}\\ \end {array} \]

system_of_ODEs

16.019

15749

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

system_of_ODEs

22.823

15750

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y_{1}^{\prime }&=2 y_{2}\\ y_{2}^{\prime }&=3 y_{1}\\ y_{3}^{\prime }&=2 y_{3}-y_{1}\\ \end {array} \]

system_of_ODEs

1.663

15751

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y_{1}^{\prime }&=2 x y_{1}-x^{2} y_{2}+4 x\\ y_{2}^{\prime }&={\mathrm e}^{x} y_{1}+3 \,{\mathrm e}^{-x} y_{2}-\cos \left (3 x \right )\\ \end {array} \]

system_of_ODEs

0.037

15752

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y_{1}^{\prime }&=2 y_{1}-3 y_{2}\\ y_{2}^{\prime }&=y_{1}-2 y_{2}\\ \end {array} \]

system_of_ODEs

0.834

15753

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y_{1}^{\prime }&=2 y_{1}-3 y_{2}+4 x -2\\ y_{2}^{\prime }&=y_{1}-2 y_{2}+3 x\\ \end {array} \]

system_of_ODEs

1.334

15754

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y_{1}^{\prime }&=\frac {5 y_{1}}{x}+\frac {4 y_{2}}{x}\\ y_{2}^{\prime }&=-\frac {6 y_{1}}{x}-\frac {5 y_{2}}{x}\\ \end {array} \]

system_of_ODEs

0.040

15755

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y_{1}^{\prime }&=\frac {5 y_{1}}{x}+\frac {4 y_{2}}{x}-2 x\\ y_{2}^{\prime }&=-\frac {6 y_{1}}{x}-\frac {5 y_{2}}{x}+5 x\\ \end {array} \]

system_of_ODEs

0.039

15756

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y_{1}^{\prime }&=2 y_{1}+y_{2}-2 y_{3}\\ y_{2}^{\prime }&=3 y_{2}-2 y_{3}\\ y_{3}^{\prime }&=3 y_{1}+y_{2}-3 y_{3}\\ \end {array} \]

system_of_ODEs

1.310

15757

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y_{1}^{\prime }&=5 y_{1}-5 y_{2}-5 y_{3}\\ y_{2}^{\prime }&=-y_{1}+4 y_{2}+2 y_{3}\\ y_{3}^{\prime }&=3 y_{1}-5 y_{2}-3 y_{3}\\ \end {array} \]

system_of_ODEs

2.088

15758

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y_{1}^{\prime }&=4 y_{1}+6 y_{2}+6 y_{3}\\ y_{2}^{\prime }&=y_{1}+3 y_{2}+2 y_{3}\\ y_{3}^{\prime }&=-y_{1}-4 y_{2}-3 y_{3}\\ \end {array} \]

system_of_ODEs

8.445

15759

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y_{1}^{\prime }&=y_{1}+2 y_{2}-3 y_{3}\\ y_{2}^{\prime }&=-3 y_{1}+4 y_{2}-2 y_{3}\\ y_{3}^{\prime }&=2 y_{1}+y_{3}\\ \end {array} \]

system_of_ODEs

2.201

15760

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y_{1}^{\prime }&=-2 y_{1}-y_{2}+y_{3}\\ y_{2}^{\prime }&=-y_{1}-2 y_{2}-y_{3}\\ y_{3}^{\prime }&=y_{1}-y_{2}-2 y_{3}\\ \end {array} \]

system_of_ODEs

1.085

15761

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y_{1}^{\prime }&=y_{1}+y_{2}+2 y_{3}\\ y_{2}^{\prime }&=y_{1}+y_{2}+2 y_{3}\\ y_{3}^{\prime }&=2 y_{1}+2 y_{2}+4 y_{3}\\ \end {array} \]

system_of_ODEs

1.138

15762

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y_{1}^{\prime }&=2 y_{1}+y_{2}\\ y_{2}^{\prime }&=-y_{1}+2 y_{2}\\ y_{3}^{\prime }&=3 y_{3}-4 y_{4}\\ y_{4}^{\prime }&=4 y_{3}+3 y_{4}\\ \end {array} \]

system_of_ODEs

2.182

15763

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y_{1}^{\prime }&=y_{2}\\ y_{2}^{\prime }&=-3 y_{1}+2 y_{3}\\ y_{3}^{\prime }&=y_{4}\\ y_{4}^{\prime }&=2 y_{1}-5 y_{3}\\ \end {array} \]

system_of_ODEs

13.925

15764

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y_{1}^{\prime }&=3 y_{1}+2 y_{2}\\ y_{2}^{\prime }&=3 y_{2}-2 y_{1}\\ y_{3}^{\prime }&=y_{3}\\ y_{4}^{\prime }&=2 y_{4}\\ \end {array} \]

system_of_ODEs

1.916

15765

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y_{1}^{\prime }&=y_{2}+y_{4}\\ y_{2}^{\prime }&=y_{1}-y_{3}\\ y_{3}^{\prime }&=y_{4}\\ y_{4}^{\prime }&=y_{3}\\ \end {array} \]

system_of_ODEs

1.311

15766

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

system_of_ODEs

0.829

15767

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

system_of_ODEs

0.633

15768

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

system_of_ODEs

3.798

15769

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

system_of_ODEs

0.897

15770

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

system_of_ODEs

7.952

15771

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

system_of_ODEs

0.846

15772

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} x^{\prime }&=-5 x-y+2\\ y^{\prime }&=3 x-y-3\\ \end {array} \]

system_of_ODEs

1.331

15773

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

system_of_ODEs

1.694

15774

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

[_separable]

17.704

15775

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

[_separable]

56.678

15776

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

[_separable]

20.002

15777

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

[_quadrature]

2.623

15778

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

[_quadrature]

2.213

15779

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

[_quadrature]

381.659

15780

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

[_quadrature]

11.269

15781

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

[_separable]

31.944

15782

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

[_separable]

71.352

15783

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

[_separable]

15.235

15784

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime }&=t y^{{1}/{3}} \end {array} \]

[_separable]

102.589

15785

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

[_quadrature]

5.754

15786

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

[_separable]

33.159

15787

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

[_quadrature]

15.244

15788

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

[_separable]

456.298

15789

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

[_separable]

18.369

15790

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

[_separable]

32.597

15791

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

[_separable]

16.978

15792

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

[_quadrature]

33.786

15793

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} w^{\prime }&=\frac {w}{t} \end {array} \]

[_separable]

38.995

15794

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

[_quadrature]

13.859

15795

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

[_separable]

19.105

15796

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

[_separable]

18.572

15797

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

[_quadrature]

32.866

15798

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

[_separable]

97.421

15799

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

[_quadrature]

58.197

15800

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

[_separable]

31.134