2.2.231 Problems 23001 to 23100

Table 2.479: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

Maple

Mma

Sympy

time(sec)

23001

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

[[_2nd_order, _missing_x]]

3.816

23002

\begin{align*} y^{\prime \prime }+7 y^{\prime }-8 y&=0 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.221

23003

\begin{align*} 3 x^{\prime \prime }+19 x^{\prime }-14 x&=0 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.242

23004

\begin{align*} 8 y^{\prime \prime }-10 y^{\prime }+3 y&=0 \\ y \left (0\right ) &= 1 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.378

23005

\begin{align*} y^{\prime \prime }-9 y^{\prime }+18 y&=0 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.215

23006

\begin{align*} y^{\prime \prime }-2 y^{\prime }-63 y&=0 \\ y \left (0\right ) &= 5 \\ y^{\prime }\left (0\right ) &= 5 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.331

23007

\begin{align*} 20 y^{\prime \prime }-3 y^{\prime }-2 y&=0 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.227

23008

\begin{align*} 35 y^{\prime \prime }-29 y^{\prime }+6 y&=0 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.230

23009

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

[[_2nd_order, _missing_x]]

0.266

23010

\begin{align*} 12 x^{\prime \prime }-25 x^{\prime }+12 x&=0 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.228

23011

\begin{align*} 38 x^{\prime \prime }+10 x^{\prime }-3 x&=0 \\ x \left (0\right ) &= 5 \\ x^{\prime }\left (0\right ) &= 0 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.440

23012

\begin{align*} 2 y^{\prime \prime }-15 y^{\prime }+27 y&=0 \\ y \left (0\right ) &= 7 \\ y^{\prime }\left (0\right ) &= 1 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.352

23013

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

[[_2nd_order, _missing_x]]

1.616

23014

\begin{align*} y^{\prime \prime }-8 y&=0 \\ y \left (0\right ) &= 2 \\ y^{\prime }\left (0\right ) &= 1 \\ \end{align*}

[[_2nd_order, _missing_x]]

1.709

23015

\begin{align*} 4 y^{\prime \prime }-7 y&=0 \\ \end{align*}

[[_2nd_order, _missing_x]]

1.324

23016

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

[[_2nd_order, _missing_x]]

0.404

23017

\begin{align*} y^{\prime \prime }+8 y^{\prime }+4 y&=0 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.267

23018

\begin{align*} x^{\prime \prime }+36 x&=0 \\ x \left (0\right ) &= 5 \\ x \left (\frac {\pi }{12}\right ) &= 7 \\ \end{align*}

[[_2nd_order, _missing_x]]

1.450

23019

\begin{align*} y^{\prime \prime }+3 y&=0 \\ y \left (0\right ) &= 0 \\ y \left (\frac {\pi \sqrt {3}}{6}\right ) &= 4 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.139

23020

\begin{align*} z^{\prime \prime }+g z&=0 \\ z \left (\frac {\pi }{3 \sqrt {g}}\right ) &= 5 \\ z \left (\frac {2 \pi }{3 \sqrt {g}}\right ) &= \frac {\pi }{3} \\ \end{align*}

[[_2nd_order, _missing_x]]

4.872

23021

\begin{align*} 9 y^{\prime \prime }+49 y&=0 \\ y \left (0\right ) &= 3 \\ y^{\prime }\left (0\right ) &= 1 \\ \end{align*}

[[_2nd_order, _missing_x]]

1.225

23022

\begin{align*} y^{\prime \prime }+3 y^{\prime }+3 y&=0 \\ y \left (0\right ) &= 1 \\ y \left (\frac {\pi \sqrt {3}}{3}\right ) &= 5 \,{\mathrm e}^{-\frac {\pi \sqrt {3}}{2}} \\ \end{align*}

[[_2nd_order, _missing_x]]

0.178

23023

\begin{align*} x^{\prime \prime }+2 x^{\prime }+4 x&=0 \\ x \left (0\right ) &= 5 \\ x \left (\frac {\pi \sqrt {3}}{6}\right ) &= 2 \,{\mathrm e}^{-\frac {\pi \sqrt {3}}{6}} \\ \end{align*}

[[_2nd_order, _missing_x]]

0.171

23024

\begin{align*} z^{\prime \prime }-7 z^{\prime }-13 z&=0 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.305

23025

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

[[_2nd_order, _missing_x]]

0.378

23026

\begin{align*} y^{\prime \prime }-5 y^{\prime }+8 y&=0 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.331

23027

\begin{align*} 5 y+4 y^{\prime }+y^{\prime \prime }&=0 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.293

23028

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

[[_2nd_order, _missing_x]]

0.336

23029

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

[[_2nd_order, _missing_x]]

0.318

23030

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

[[_2nd_order, _missing_x]]

0.297

23031

\begin{align*} z^{\prime \prime }+8 z^{\prime }+16 z&=0 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.316

23032

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

[[_2nd_order, _missing_x]]

1.725

23033

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

[[_2nd_order, _with_linear_symmetries]]

0.392

23034

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.437

23035

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.459

23036

\begin{align*} x^{\prime \prime }-6 x^{\prime }-7 x&=4 z -7 \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.398

23037

\begin{align*} y^{\prime \prime }+3 y^{\prime }+5 y&=4 \,{\mathrm e}^{3 t} \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.488

23038

\begin{align*} x^{\prime \prime }-2 x^{\prime }+5 x&=3 \cos \left (2 t \right ) \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.470

23039

\begin{align*} y^{\prime \prime }+5 y^{\prime }+8 y&=4 \sin \left (5 x \right ) \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.514

23040

\begin{align*} x^{\prime \prime }+9 x^{\prime }+8 x&=\sin \left (5 t \right ) \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.441

23041

\begin{align*} x^{\prime \prime }-9 x^{\prime }-10 x&=\cos \left (4 t \right ) \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.460

23042

\begin{align*} y^{\prime \prime }-9 y^{\prime }+14 y&={\mathrm e}^{2 x} \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.413

23043

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.487

23044

\begin{align*} y^{\prime \prime }+2 y^{\prime }-15 y&={\mathrm e}^{4 x} \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.388

23045

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

[[_2nd_order, _missing_x], _Liouville, [_2nd_order, _reducible, _mu_xy]]

0.470

23046

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

[[_2nd_order, _missing_x], [_2nd_order, _reducible, _mu_x_y1], [_2nd_order, _reducible, _mu_xy]]

0.401

23047

\begin{align*} T^{\prime \prime }+{T^{\prime }}^{3}&=0 \\ \end{align*}

[[_2nd_order, _missing_x], [_2nd_order, _reducible, _mu_y_y1]]

0.891

23048

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

[[_2nd_order, _missing_y], [_2nd_order, _exact, _nonlinear], [_2nd_order, _reducible, _mu_y_y1], [_2nd_order, _reducible, _mu_poly_yn]]

2.569

23049

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

[[_2nd_order, _missing_y], [_2nd_order, _reducible, _mu_y_y1]]

0.303

23050

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

[[_2nd_order, _missing_y]]

0.910

23051

\begin{align*} y^{\prime \prime }-4 y^{\prime }&=7 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.954

23052

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

[[_2nd_order, _missing_y]]

0.961

23053

\begin{align*} s^{\prime \prime }&=5 t^{2}-7 t \\ s \left (0\right ) &= 0 \\ s \left (1\right ) &= {\frac {1}{4}} \\ \end{align*}

[[_2nd_order, _quadrature]]

0.771

23054

\begin{align*} s^{\prime \prime }&=-9 s \\ s \left (0\right ) &= 9 \\ s^{\prime }\left (0\right ) &= 0 \\ \end{align*}

[[_2nd_order, _missing_x]]

1.257

23055

\begin{align*} r^{\prime }&=-a \sin \left (\theta \right ) \\ r \left (0\right ) &= 2 a \\ \end{align*}

[_quadrature]

0.281

23056

\begin{align*} \frac {r^{\prime }}{r}&=\tan \left (\theta \right ) \\ \end{align*}

[_separable]

2.847

23057

\begin{align*} \left (1+\cos \left (\theta \right )\right ) r^{\prime }&=-r \sin \left (\theta \right ) \\ \end{align*}

[_separable]

3.503

23058

\begin{align*} \cot \left (\theta \right ) r^{\prime }&=r+b \\ \end{align*}

[_separable]

2.109

23059

\begin{align*} r r^{\prime }&=a \\ r \left (0\right ) &= b \\ \end{align*}

[_quadrature]

1.034

23060

\begin{align*} r^{\prime } \left (1+\frac {\cos \left (\theta \right )}{2}\right )-r \sin \left (\theta \right )&=0 \\ r \left (\frac {\pi }{2}\right ) &= 2 a \\ \end{align*}

[_separable]

4.185

23061

\begin{align*} \sin \left (\theta \right )^{2} r^{\prime }&=-b \cos \left (\theta \right ) \\ \end{align*}

[_quadrature]

0.384

23062

\begin{align*} r^{\prime }&=0 \\ r \left (0\right ) &= 0 \\ \end{align*}

[_quadrature]

0.359

23063

\begin{align*} r^{\prime }&=c \\ r \left (0\right ) &= a \\ \end{align*}

[_quadrature]

0.605

23064

\begin{align*} r^{\prime } \left (\sin \left (\theta \right )-m \cos \left (\theta \right )\right )+r \left (\cos \left (\theta \right )+m \sin \left (\theta \right )\right )&=0 \\ \end{align*}

[_separable]

4.280

23065

\begin{align*} 6 y-5 y^{\prime }+y^{\prime \prime }&={\mathrm e}^{x} \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.376

23066

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.425

23067

\begin{align*} y^{\prime \prime }-5 y^{\prime }+4 y&=x^{2} \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.391

23068

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

[[_2nd_order, _with_linear_symmetries]]

0.427

23069

\begin{align*} y^{\prime \prime }-11 y^{\prime }+30 y&={\mathrm e}^{5 x} \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.397

23070

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.458

23071

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.461

23072

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

[[_2nd_order, _with_linear_symmetries]]

0.433

23073

\begin{align*} 2 y^{\prime \prime }-4 y^{\prime }-y&=7 \,{\mathrm e}^{5 x} \\ \end{align*}

[[_2nd_order, _with_linear_symmetries]]

0.442

23074

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.471

23075

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.507

23076

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.621

23077

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.459

23078

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.482

23079

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.556

23080

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.563

23081

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.986

23082

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

[[_2nd_order, _with_linear_symmetries]]

0.540

23083

\begin{align*} y^{\prime \prime }+4 y^{\prime }+4 y&=8 \sin \left (2 x \right ) \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.697

23084

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.434

23085

\begin{align*} y^{\prime \prime }-4 y^{\prime }+13 y&={\mathrm e}^{2 x} \sin \left (3 x \right ) \\ y \left (0\right ) &= 4 \\ y^{\prime }\left (0\right ) &= -{\frac {25}{6}} \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.652

23086

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

[[_2nd_order, _with_linear_symmetries]]

0.596

23087

\begin{align*} y^{\prime \prime }-4 y&=12 \\ \end{align*}

[[_2nd_order, _missing_x]]

1.523

23088

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.571

23089

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.483

23090

\begin{align*} 16 y+8 y^{\prime }+y^{\prime \prime }&=x \left (12-{\mathrm e}^{-4 x}\right ) \\ \end{align*}

[[_2nd_order, _linear, _nonhomogeneous]]

0.533

23091

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

[[_2nd_order, _linear, _nonhomogeneous]]

0.606

23092

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

With initial conditions

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

system_of_ODEs

0.194

23093

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

With initial conditions

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

system_of_ODEs

0.024

23094

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

With initial conditions

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

system_of_ODEs

0.168

23095

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

With initial conditions

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

system_of_ODEs

0.192

23096

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

With initial conditions

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

system_of_ODEs

0.160

23097

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

[[_2nd_order, _missing_x]]

1.110

23098

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

[[_2nd_order, _missing_x]]

0.931

23099

\begin{align*} y^{\prime \prime }-4 y&=0 \\ \end{align*}

[[_2nd_order, _missing_x]]

0.870

23100

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

[[_2nd_order, _missing_x]]

1.145