2.2.254 Problems 25301 to 25400

Table 2.525: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

Maple

Mma

Sympy

time(sec)

25301

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

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

4.659

25302

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+5 y^{\prime }+6 y&=\left \{\begin {array}{cc} 0 & 0\le t <1 \\ 6 & 1\le t <3 \\ 0 & 3\le t \end {array}\right .\\ y \left (0\right )&=0\\ y^{\prime }\left (0\right )&=0\\ \end {array} \]

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

0.760

25303

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

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

0.537

25304

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

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

0.416

25305

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y^{\prime \prime }+2 y^{\prime }+y&=\left \{\begin {array}{cc} {\mathrm e}^{-t} & 0\le t <4 \\ 0 & 4\le t \end {array}\right .\\ y \left (0\right )&=0\\ y^{\prime }\left (0\right )&=0\\ \end {array} \]

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

1.297

25306

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

Using Laplace transform method.

[[_linear, ‘class A‘]]

1.232

25307

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

Using Laplace transform method.

[[_linear, ‘class A‘]]

4.887

25308

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

Using Laplace transform method.

[[_linear, ‘class A‘]]

1.402

25309

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

Using Laplace transform method.

[[_linear, ‘class A‘]]

5.719

25310

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

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

0.753

25311

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

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

0.568

25312

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

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

0.410

25313

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

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

0.581

25314

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

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

0.552

25315

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

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

0.503

25316

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

Using Laplace transform method.

[[_linear, ‘class A‘]]

5.950

25317

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

Using Laplace transform method.

[[_linear, ‘class A‘]]

1.441

25318

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

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

0.380

25319

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

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

0.560

25320

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

Using Laplace transform method.

[[_2nd_order, _missing_x]]

0.374

25321

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

Using Laplace transform method.

[[_2nd_order, _missing_x]]

0.344

25322

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

Using Laplace transform method.

[[_2nd_order, _missing_x]]

0.216

25323

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

Using Laplace transform method.

[[_3rd_order, _missing_x]]

0.406

25324

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

Series expansion around \(t=0\).

[[_2nd_order, _missing_x]]

0.540

25325

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

Series expansion around \(t=0\).

[[_2nd_order, _missing_x]]

4.386

25326

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

Series expansion around \(t=0\).

[[_2nd_order, _missing_x]]

0.631

25327

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

Series expansion around \(t=0\).

[[_2nd_order, _missing_x]]

0.907

25328

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

Series expansion around \(t=0\).

[[_2nd_order, _exact, _linear, _homogeneous]]

0.775

25329

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

Series expansion around \(t=0\).

[_Gegenbauer]

0.739

25330

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

0.624

25331

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

0.573

25332

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (t^{2}+1\right ) y^{\prime \prime }-4 y^{\prime } t +6 y&=0 \end {array} \]

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

0.617

25333

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} \left (-t^{2}+1\right ) y^{\prime \prime }-6 y^{\prime } t -4 y&=0 \end {array} \]

Series expansion around \(t=0\).

[[_2nd_order, _exact, _linear, _homogeneous]]

0.896

25334

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

1.077

25335

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

1.362

25336

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

5.521

25337

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

0.266

25338

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

1.235

25339

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

1.043

25340

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

Series expansion around \(t=0\).

[_Lienard]

1.083

25341

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

1.418

25342

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

Series expansion around \(t=0\).

[_Laguerre]

4.091

25343

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

0.983

25344

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

[[_Emden, _Fowler]]

0.147

25345

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

Series expansion around \(t=0\).

[_Lienard]

0.864

25346

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

0.998

25347

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

0.785

25348

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

0.992

25349

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

3.912

25350

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

1.091

25351

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

Series expansion around \(t=0\).

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

13.860

25352

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

Series expansion around \(t=0\).

[[_Emden, _Fowler]]

8.791

25353

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

1.166

25354

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

1.278

25355

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

4.858

25356

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

1.216

25357

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

Series expansion around \(t=0\).

[[_2nd_order, _with_linear_symmetries]]

1.896

25358

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

system_of_ODEs

0.034

25359

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

system_of_ODEs

1.220

25360

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

system_of_ODEs

0.027

25361

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

system_of_ODEs

0.036

25362

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

system_of_ODEs

5.715

25363

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

system_of_ODEs

0.993

25364

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

system_of_ODEs

0.645

25365

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

system_of_ODEs

0.593

25366

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

system_of_ODEs

0.683

25367

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

system_of_ODEs

4.778

25368

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

system_of_ODEs

0.542

25369

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

system_of_ODEs

0.834

25370

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

system_of_ODEs

0.504

25371

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

system_of_ODEs

0.694

25372

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

system_of_ODEs

0.624

25373

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

system_of_ODEs

4.470

25374

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

system_of_ODEs

0.539

25375

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

system_of_ODEs

0.916

25376

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

system_of_ODEs

1.277

25377

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

system_of_ODEs

4.712

25378

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

system_of_ODEs

1.171

25379

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

system_of_ODEs

1.647

25380

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

system_of_ODEs

1.091

25381

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

system_of_ODEs

4.673

25382

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y_{1}^{\prime }&=5 y_{1}+2 y_{2}+t\\ y_{2}^{\prime }&=-8 y_{1}-3 y_{2}-2 t\\ \end {array} \]

system_of_ODEs

0.978

25383

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

system_of_ODEs

1.575

25384

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

system_of_ODEs

5.097

25385

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

system_of_ODEs

0.684

25386

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

system_of_ODEs

0.737

25387

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

system_of_ODEs

0.030

25388

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

system_of_ODEs

0.032

25389

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

system_of_ODEs

0.028

25390

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

system_of_ODEs

0.032

25391

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

system_of_ODEs

0.029

25392

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

system_of_ODEs

0.028

25393

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

system_of_ODEs

0.031

25394

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

system_of_ODEs

0.034

25395

\[ \begin {array}{>{\displaystyle }r @{\;} >{\displaystyle }l} y_{1}^{\prime }&=3 \sec \left (t \right ) y_{1}+5 \sec \left (t \right ) y_{2}\\ y_{2}^{\prime }&=-\sec \left (t \right ) y_{1}-3 \sec \left (t \right ) y_{2}\\ \end {array} \]

system_of_ODEs

0.033

25396

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

system_of_ODEs

0.032

25397

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

[_quadrature]

3.014

25398

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

[_separable]

9.906

25399

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

[_quadrature]

1.776

25400

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

[_quadrature]

5.160