2.2.141 Problems 14001 to 14100

Table 2.283: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

time (sec)

14001

\[ {}x y^{\prime \prime }+x^{2} y^{\prime }+2 x y = 0 \]

[[_2nd_order, _exact, _linear, _homogeneous]]

1.451

14002

\[ {}y^{\prime \prime }+\sin \left (x \right ) y^{\prime }+y \cos \left (x \right ) = \cos \left (x \right ) \]

[[_2nd_order, _exact, _linear, _nonhomogeneous]]

1.222

14003

\[ {}y^{\prime \prime }+\cot \left (x \right ) y^{\prime }-\csc \left (x \right )^{2} y = \cos \left (x \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

7.664

14004

\[ {}x \ln \left (x \right ) y^{\prime \prime }+2 y^{\prime }-\frac {y}{x} = 1 \]

[[_2nd_order, _exact, _linear, _nonhomogeneous]]

1.140

14005

\[ {}x y^{\prime \prime }+\left (6 x y^{2}+1\right ) y^{\prime }+2 y^{3}+1 = 0 \]

[[_2nd_order, _exact, _nonlinear], [_2nd_order, _reducible, _mu_x_y1], [_2nd_order, _reducible, _mu_y_y1], [_2nd_order, _reducible, _mu_xy]]

1.653

14006

\[ {}\frac {x y^{\prime \prime }}{1+y}+\frac {y y^{\prime }-x {y^{\prime }}^{2}+y^{\prime }}{\left (1+y\right )^{2}} = x \sin \left (x \right ) \]

[[_2nd_order, _exact, _nonlinear], [_2nd_order, _with_linear_symmetries], [_2nd_order, _reducible, _mu_xy]]

1.438

14007

\[ {}\left (x \cos \left (y\right )+\sin \left (x \right )\right ) y^{\prime \prime }-x {y^{\prime }}^{2} \sin \left (y\right )+2 \left (\cos \left (y\right )+\cos \left (x \right )\right ) y^{\prime } = y \sin \left (x \right ) \]

[[_2nd_order, _exact, _nonlinear], [_2nd_order, _reducible, _mu_xy]]

46.667

14008

\[ {}y y^{\prime \prime } \sin \left (x \right )+\left (\sin \left (x \right ) y^{\prime }+y \cos \left (x \right )\right ) y^{\prime } = \cos \left (x \right ) \]

[[_2nd_order, _exact, _nonlinear], [_2nd_order, _reducible, _mu_y_y1], [_2nd_order, _reducible, _mu_xy]]

0.637

14009

\[ {}\left (1-y\right ) y^{\prime \prime }-{y^{\prime }}^{2} = 0 \]

[[_2nd_order, _missing_x], [_2nd_order, _exact, _nonlinear], _Liouville, [_2nd_order, _reducible, _mu_x_y1], [_2nd_order, _reducible, _mu_xy]]

0.537

14010

\[ {}\left (\cos \left (y\right )-y \sin \left (y\right )\right ) y^{\prime \prime }-{y^{\prime }}^{2} \left (2 \sin \left (y\right )+y \cos \left (y\right )\right ) = \sin \left (x \right ) \]

[[_2nd_order, _exact, _nonlinear], [_2nd_order, _reducible, _mu_y_y1], [_2nd_order, _reducible, _mu_xy]]

0.899

14011

\[ {}y^{\prime \prime }+\frac {2 x y^{\prime }}{2 x -1}-\frac {4 x y}{\left (2 x -1\right )^{2}} = 0 \]

[[_2nd_order, _with_linear_symmetries]]

1.765

14012

\[ {}\left (x^{2}+2 x \right ) y^{\prime \prime }+\left (x^{2}+x +10\right ) y^{\prime } = \left (25-6 x \right ) y \]

[[_2nd_order, _with_linear_symmetries]]

3.430

14013

\[ {}y^{\prime \prime }+\frac {y^{\prime }}{x +1}-\frac {\left (x +2\right ) y}{x^{2} \left (x +1\right )} = 0 \]

[[_2nd_order, _with_linear_symmetries]]

1.210

14014

\[ {}\left (x^{2}-x \right ) y^{\prime \prime }+\left (2 x^{2}+4 x -3\right ) y^{\prime }+8 x y = 0 \]

[[_2nd_order, _with_linear_symmetries]]

1.268

14015

\[ {}\frac {\left (x^{2}-x \right ) y^{\prime \prime }}{x}+\frac {\left (3 x +1\right ) y^{\prime }}{x}+\frac {y}{x} = 3 x \]

[[_2nd_order, _linear, _nonhomogeneous]]

1.349

14016

\[ {}\left (2 \sin \left (x \right )-\cos \left (x \right )\right ) y^{\prime \prime }+\left (7 \sin \left (x \right )+4 \cos \left (x \right )\right ) y^{\prime }+10 y \cos \left (x \right ) = 0 \]

[[_2nd_order, _with_linear_symmetries]]

9.366

14017

\[ {}y^{\prime \prime }+\frac {\left (x -1\right ) y^{\prime }}{x}+\frac {y}{x^{3}} = \frac {{\mathrm e}^{-\frac {1}{x}}}{x^{3}} \]

[[_2nd_order, _linear, _nonhomogeneous]]

0.493

14018

\[ {}y^{\prime \prime }+\left (2 x +5\right ) y^{\prime }+\left (4 x +8\right ) y = {\mathrm e}^{-2 x} \]

[[_2nd_order, _linear, _nonhomogeneous]]

1.814

14019

\[ {}y^{\prime \prime }+9 y = 0 \]
i.c.

[[_2nd_order, _missing_x]]

0.266

14020

\[ {}4 y^{\prime \prime }-4 y^{\prime }+5 y = 0 \]
i.c.

[[_2nd_order, _missing_x]]

0.311

14021

\[ {}y^{\prime \prime }+2 y^{\prime }+y = 0 \]
i.c.

[[_2nd_order, _missing_x]]

0.227

14022

\[ {}y^{\prime \prime }-4 y^{\prime }+5 y = 0 \]
i.c.

[[_2nd_order, _missing_x]]

0.270

14023

\[ {}y^{\prime \prime }-y^{\prime }-6 y = 0 \]
i.c.

[[_2nd_order, _missing_x]]

0.233

14024

\[ {}4 y^{\prime \prime }-4 y^{\prime }+37 y = 0 \]
i.c.

[[_2nd_order, _missing_x]]

0.375

14025

\[ {}y^{\prime \prime }+3 y^{\prime }+2 y = 0 \]
i.c.

[[_2nd_order, _missing_x]]

0.241

14026

\[ {}y^{\prime \prime }+2 y^{\prime }+5 y = 0 \]
i.c.

[[_2nd_order, _missing_x]]

0.270

14027

\[ {}4 y^{\prime \prime }-12 y^{\prime }+13 y = 0 \]
i.c.

[[_2nd_order, _missing_x]]

0.270

14028

\[ {}y^{\prime \prime }+4 y^{\prime }+13 y = 0 \]
i.c.

[[_2nd_order, _missing_x]]

0.328

14029

\[ {}y^{\prime \prime }+6 y^{\prime }+9 y = 0 \]
i.c.

[[_2nd_order, _missing_x]]

0.215

14030

\[ {}y^{\prime \prime \prime \prime }+y = 0 \]
i.c.

[[_high_order, _missing_x]]

0.610

14031

\[ {}y^{\prime \prime }-2 y^{\prime }+5 y = 0 \]
i.c.

[[_2nd_order, _missing_x]]

0.281

14032

\[ {}y^{\prime \prime }-20 y^{\prime }+51 y = 0 \]
i.c.

[[_2nd_order, _missing_x]]

0.252

14033

\[ {}2 y^{\prime \prime }+3 y^{\prime }+y = 0 \]
i.c.

[[_2nd_order, _missing_x]]

0.247

14034

\[ {}3 y^{\prime \prime }+8 y^{\prime }-3 y = 0 \]
i.c.

[[_2nd_order, _missing_x]]

0.247

14035

\[ {}2 y^{\prime \prime }+20 y^{\prime }+51 y = 0 \]
i.c.

[[_2nd_order, _missing_x]]

0.314

14036

\[ {}4 y^{\prime \prime }+40 y^{\prime }+101 y = 0 \]
i.c.

[[_2nd_order, _missing_x]]

0.269

14037

\[ {}y^{\prime \prime }+6 y^{\prime }+34 y = 0 \]
i.c.

[[_2nd_order, _missing_x]]

0.313

14038

\[ {}y^{\prime \prime \prime }+8 y^{\prime \prime }+16 y^{\prime } = 0 \]
i.c.

[[_3rd_order, _missing_x]]

0.266

14039

\[ {}y^{\prime \prime \prime }+6 y^{\prime \prime }+13 y^{\prime } = 0 \]
i.c.

[[_3rd_order, _missing_x]]

0.314

14040

\[ {}y^{\prime \prime \prime }-6 y^{\prime \prime }+13 y^{\prime } = 0 \]
i.c.

[[_3rd_order, _missing_x]]

0.316

14041

\[ {}y^{\prime \prime \prime }+4 y^{\prime \prime }+29 y^{\prime } = 0 \]
i.c.

[[_3rd_order, _missing_x]]

0.339

14042

\[ {}y^{\prime \prime \prime }+6 y^{\prime \prime }+25 y^{\prime } = 0 \]
i.c.

[[_3rd_order, _missing_x]]

0.323

14043

\[ {}y^{\prime \prime \prime }-6 y^{\prime \prime }+10 y^{\prime } = 0 \]
i.c.

[[_3rd_order, _missing_x]]

0.314

14044

\[ {}y^{\prime \prime \prime \prime }+13 y^{\prime \prime }+36 y = 0 \]
i.c.

[[_high_order, _missing_x]]

0.466

14045

\[ {}y^{\prime \prime }+2 y^{\prime }+3 y = 9 t \]
i.c.

[[_2nd_order, _with_linear_symmetries]]

0.339

14046

\[ {}4 y^{\prime \prime }+16 y^{\prime }+17 y = 17 t -1 \]
i.c.

[[_2nd_order, _with_linear_symmetries]]

0.301

14047

\[ {}4 y^{\prime \prime }+5 y^{\prime }+4 y = 3 \,{\mathrm e}^{-t} \]
i.c.

[[_2nd_order, _with_linear_symmetries]]

0.495

14048

\[ {}y^{\prime \prime }-4 y^{\prime }+4 y = t^{2} {\mathrm e}^{2 t} \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

0.243

14049

\[ {}y^{\prime \prime }+9 y = {\mathrm e}^{-2 t} \]
i.c.

[[_2nd_order, _with_linear_symmetries]]

0.326

14050

\[ {}2 y^{\prime \prime }-3 y^{\prime }+17 y = 17 t -1 \]
i.c.

[[_2nd_order, _with_linear_symmetries]]

0.532

14051

\[ {}y^{\prime \prime }+2 y^{\prime }+y = {\mathrm e}^{-t} \]
i.c.

[[_2nd_order, _with_linear_symmetries]]

0.245

14052

\[ {}y^{\prime \prime }-2 y^{\prime }+5 y = t +2 \]
i.c.

[[_2nd_order, _with_linear_symmetries]]

0.387

14053

\[ {}2 y^{\prime }+y = {\mathrm e}^{-\frac {t}{2}} \]
i.c.

[[_linear, ‘class A‘]]

0.393

14054

\[ {}y^{\prime \prime }+8 y^{\prime }+20 y = \sin \left (2 t \right ) \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

0.413

14055

\[ {}4 y^{\prime \prime }-4 y^{\prime }+y = t^{2} \]
i.c.

[[_2nd_order, _with_linear_symmetries]]

0.282

14056

\[ {}2 y^{\prime \prime }+y^{\prime }-y = 4 \sin \left (t \right ) \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

0.410

14057

\[ {}y^{\prime }-y = {\mathrm e}^{2 t} \]
i.c.

[[_linear, ‘class A‘]]

0.378

14058

\[ {}3 y^{\prime \prime }+5 y^{\prime }-2 y = 7 \,{\mathrm e}^{-2 t} \]
i.c.

[[_2nd_order, _with_linear_symmetries]]

0.270

14059

\[ {}y^{\prime }+y = \operatorname {Heaviside}\left (t \right )-\operatorname {Heaviside}\left (t -2\right ) \]
i.c.

[[_linear, ‘class A‘]]

0.468

14060

\[ {}y^{\prime }-2 y = 4 t \left (\operatorname {Heaviside}\left (t \right )-\operatorname {Heaviside}\left (t -2\right )\right ) \]
i.c.

[[_linear, ‘class A‘]]

0.770

14061

\[ {}y^{\prime \prime }+9 y = 24 \sin \left (t \right ) \left (\operatorname {Heaviside}\left (t \right )+\operatorname {Heaviside}\left (t -\pi \right )\right ) \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

0.499

14062

\[ {}y^{\prime \prime }+2 y^{\prime }+y = \operatorname {Heaviside}\left (t \right )-\operatorname {Heaviside}\left (t -1\right ) \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

0.630

14063

\[ {}y^{\prime \prime }+2 y^{\prime }+2 y = 5 \cos \left (t \right ) \left (\operatorname {Heaviside}\left (t \right )-\operatorname {Heaviside}\left (t -\frac {\pi }{2}\right )\right ) \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

1.430

14064

\[ {}y^{\prime \prime }+5 y^{\prime }+6 y = 36 t \left (\operatorname {Heaviside}\left (t \right )-\operatorname {Heaviside}\left (t -1\right )\right ) \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

0.743

14065

\[ {}y^{\prime \prime }+4 y^{\prime }+13 y = 39 \operatorname {Heaviside}\left (t \right )-507 \left (t -2\right ) \operatorname {Heaviside}\left (t -2\right ) \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

1.254

14066

\[ {}y^{\prime \prime }+4 y = 3 \operatorname {Heaviside}\left (t \right )-3 \operatorname {Heaviside}\left (t -4\right )+\left (2 t -5\right ) \operatorname {Heaviside}\left (t -4\right ) \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

0.598

14067

\[ {}4 y^{\prime \prime }+4 y^{\prime }+5 y = 25 t \left (\operatorname {Heaviside}\left (t \right )-\operatorname {Heaviside}\left (t -\frac {\pi }{2}\right )\right ) \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

2.799

14068

\[ {}y^{\prime \prime }+4 y^{\prime }+3 y = \operatorname {Heaviside}\left (t \right )-\operatorname {Heaviside}\left (t -1\right )+\operatorname {Heaviside}\left (t -2\right )-\operatorname {Heaviside}\left (t -3\right ) \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

1.149

14069

\[ {}y^{\prime \prime }-2 y^{\prime } = \left \{\begin {array}{cc} 4 & 0\le t <1 \\ 6 & 1\le t \end {array}\right . \]
i.c.

[[_2nd_order, _missing_y]]

0.584

14070

\[ {}y^{\prime \prime }-3 y^{\prime }+2 y = \left \{\begin {array}{cc} 0 & 0\le t <1 \\ 1 & 1\le t <2 \\ -1 & 2\le t \end {array}\right . \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

0.725

14071

\[ {}y^{\prime \prime }+3 y^{\prime }+2 y = \left \{\begin {array}{cc} 1 & 0\le t <2 \\ -1 & 2\le t \end {array}\right . \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

0.618

14072

\[ {}y^{\prime \prime }+y = \left \{\begin {array}{cc} t & 0\le t <\pi \\ -t & \pi \le t \end {array}\right . \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

0.661

14073

\[ {}y^{\prime \prime }+4 y = \left \{\begin {array}{cc} 8 t & 0\le t <\frac {\pi }{2} \\ 8 \pi & \frac {\pi }{2}\le t \end {array}\right . \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

1.488

14074

\[ {}y^{\prime \prime }+4 \pi ^{2} y = 3 \delta \left (t -\frac {1}{3}\right )-\delta \left (t -1\right ) \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

1.654

14075

\[ {}y^{\prime \prime }+2 y^{\prime }+2 y = 3 \delta \left (t -1\right ) \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

0.501

14076

\[ {}y^{\prime \prime }+4 y^{\prime }+29 y = 5 \delta \left (t -\pi \right )-5 \delta \left (t -2 \pi \right ) \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

1.111

14077

\[ {}y^{\prime \prime }+3 y^{\prime }+2 y = 1-\delta \left (t -1\right ) \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

0.523

14078

\[ {}4 y^{\prime \prime }+4 y^{\prime }+y = {\mathrm e}^{-\frac {t}{2}} \delta \left (t -1\right ) \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

0.345

14079

\[ {}y^{\prime \prime }-7 y^{\prime }+6 y = \delta \left (t -1\right ) \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

0.342

14080

\[ {}10 Q^{\prime }+100 Q = \operatorname {Heaviside}\left (t -1\right )-\operatorname {Heaviside}\left (t -2\right ) \]
i.c.

[[_linear, ‘class A‘]]

0.648

14081

\[ {}y^{\prime \prime \prime }+y^{\prime \prime }+4 y^{\prime }+4 y = 8 \]
i.c.

[[_3rd_order, _missing_x]]

0.352

14082

\[ {}y^{\prime \prime \prime }-2 y^{\prime \prime }-y^{\prime }+2 y = 4 t \]
i.c.

[[_3rd_order, _with_linear_symmetries]]

0.299

14083

\[ {}y^{\prime \prime \prime }-y^{\prime \prime }+4 y^{\prime }-4 y = 8 \,{\mathrm e}^{2 t}-5 \,{\mathrm e}^{t} \]
i.c.

[[_3rd_order, _linear, _nonhomogeneous]]

0.360

14084

\[ {}y^{\prime \prime \prime }-5 y^{\prime \prime }+y^{\prime }-y = -t^{2}+2 t -10 \]
i.c.

[[_3rd_order, _with_linear_symmetries]]

1.797

14085

\[ {}y^{\prime \prime \prime \prime }-5 y^{\prime \prime }+4 y = 12 \operatorname {Heaviside}\left (t \right )-12 \operatorname {Heaviside}\left (t -1\right ) \]
i.c.

[[_high_order, _linear, _nonhomogeneous]]

9.463

14086

\[ {}y^{\prime \prime \prime \prime }-16 y = 32 \operatorname {Heaviside}\left (t \right )-32 \operatorname {Heaviside}\left (t -\pi \right ) \]
i.c.

[[_high_order, _linear, _nonhomogeneous]]

5.098

14087

\[ {}t^{2} y^{\prime \prime }+3 t y^{\prime }+y = t^{7} \]

[[_2nd_order, _exact, _linear, _nonhomogeneous]]

1.704

14088

\[ {}t^{2} y^{\prime \prime }-6 t y^{\prime }+\sin \left (2 t \right ) y = \ln \left (t \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

1.001

14089

\[ {}y^{\prime \prime }+3 y^{\prime }+\frac {y}{t} = t \]

[[_2nd_order, _linear, _nonhomogeneous]]

0.492

14090

\[ {}y^{\prime \prime }+t y^{\prime }-y \ln \left (t \right ) = \cos \left (2 t \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

0.519

14091

\[ {}t^{3} y^{\prime \prime }-2 t y^{\prime }+y = t^{4} \]

[[_2nd_order, _linear, _nonhomogeneous]]

0.501

14092

\[ {}y^{\prime \prime }+2 y^{\prime }+y = 1 \]

[[_2nd_order, _missing_x]]

1.298

14093

\[ {}y^{\prime \prime }-2 y^{\prime }+5 y = {\mathrm e}^{t} \]

[[_2nd_order, _with_linear_symmetries]]

5.535

14094

\[ {}y^{\prime \prime }-3 y^{\prime }-7 y = 4 \]

[[_2nd_order, _missing_x]]

1.810

14095

\[ {}y^{\prime \prime \prime }+3 y^{\prime \prime }+3 y^{\prime }+y = 5 \]

[[_3rd_order, _missing_x]]

0.101

14096

\[ {}3 y^{\prime \prime }+5 y^{\prime }-2 y = 3 t^{2} \]

[[_2nd_order, _with_linear_symmetries]]

1.543

14097

\[ {}y^{\prime \prime \prime } = 2 y^{\prime \prime }-4 y^{\prime }+\sin \left (t \right ) \]

[[_3rd_order, _missing_y]]

0.137

14098

\[ {}\left [\begin {array}{c} x^{\prime }=x-2 y \\ y^{\prime }=3 x-4 y \end {array}\right ] \]

system_of_ODEs

0.412

14099

\[ {}\left [\begin {array}{c} x^{\prime }=\frac {5 x}{4}+\frac {3 y}{4} \\ y^{\prime }=\frac {x}{2}-\frac {3 y}{2} \end {array}\right ] \]

system_of_ODEs

0.604

14100

\[ {}\left [\begin {array}{c} x^{\prime }-x+2 y=0 \\ y^{\prime }+y-x=0 \end {array}\right ] \]

system_of_ODEs

0.442