2.3.121 Problems 12001 to 12100

Table 2.785: Main lookup table. Sorted by time used to solve.

#

ID

ODE

Solved?

Maple

Mma

Sympy

time(sec)

12001

20111

\begin{align*} y+3 y^{\prime } x +9 x^{2} y^{\prime \prime }+6 x^{3} y^{\prime \prime \prime }+x^{4} y^{\prime \prime \prime \prime }&=\left (1+\ln \left (x \right )\right )^{2} \\ \end{align*}

0.941

12002

21331

\begin{align*} y^{\prime }&=6 y \\ \end{align*}

0.941

12003

22172

\begin{align*} 2 x^{2} y^{\prime \prime }+7 x \left (x +1\right ) y^{\prime }-3 y&=0 \\ \end{align*}
Series expansion around \(x=0\).

0.941

12004

23545

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

0.941

12005

23692

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

0.941

12006

23696

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

0.941

12007

4537

\begin{align*} y_{1}^{\prime }-y_{2}&=0 \\ 4 y_{1}+y_{2}^{\prime }-4 y_{2}-2 y_{3}&=0 \\ -2 y_{1}+y_{2}+y_{3}^{\prime }+y_{3}&=0 \\ \end{align*}

0.942

12008

6479

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

0.942

12009

9252

\begin{align*} y^{\prime \prime }-2 y^{\prime }&=12 x -10 \\ \end{align*}

0.942

12010

9677

\begin{align*} x^{\prime }&=2 x-7 y \\ y^{\prime }&=5 x+10 y+4 z \\ z^{\prime }&=5 y+2 z \\ \end{align*}

0.942

12011

11303

\begin{align*} y^{\prime }-\frac {1}{\sqrt {\operatorname {a4} \,x^{4}+\operatorname {a3} \,x^{3}+\operatorname {a2} \,x^{2}+\operatorname {a1} x +\operatorname {a0}}}&=0 \\ \end{align*}

0.942

12012

23773

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

0.942

12013

2736

\begin{align*} x_{1}^{\prime }&=x_{1}-x_{2} \\ x_{2}^{\prime }&=x_{1}+2 x_{2}+x_{3} \\ x_{3}^{\prime }&=x_{1}+10 x_{2}+2 x_{3} \\ \end{align*}
With initial conditions
\begin{align*} x_{1} \left (0\right ) &= -1 \\ x_{2} \left (0\right ) &= -4 \\ x_{3} \left (0\right ) &= 13 \\ \end{align*}

0.943

12014

3401

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

0.943

12015

4542

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

0.943

12016

9498

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

0.943

12017

16872

\begin{align*} \sqrt {x}\, y^{\prime \prime }+y&=0 \\ \end{align*}
Series expansion around \(x=1\).

0.943

12018

19000

\begin{align*} x_{1}^{\prime }&=2 x_{1}+2 x_{2}-x_{4} \\ x_{2}^{\prime }&=2 x_{1}-x_{2}+2 x_{4} \\ x_{3}^{\prime }&=3 x_{3} \\ x_{4}^{\prime }&=-x_{1}+2 x_{2}+2 x_{4} \\ \end{align*}

0.943

12019

20720

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

0.943

12020

23995

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

0.943

12021

24789

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

0.943

12022

25594

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

0.943

12023

217

\begin{align*} 4 y+y^{\prime \prime }&=0 \\ y \left (0\right ) &= 3 \\ y^{\prime }\left (0\right ) &= 8 \\ \end{align*}

0.944

12024

994

\begin{align*} x_{1}^{\prime }&=4 x_{1}+x_{2}+x_{3}+7 x_{4} \\ x_{2}^{\prime }&=x_{1}+4 x_{2}+10 x_{3}+x_{4} \\ x_{3}^{\prime }&=x_{1}+10 x_{2}+4 x_{3}+x_{4} \\ x_{4}^{\prime }&=7 x_{1}+x_{2}+x_{3}+4 x_{4} \\ \end{align*}
With initial conditions
\begin{align*} x_{1} \left (0\right ) &= 3 \\ x_{2} \left (0\right ) &= 1 \\ x_{3} \left (0\right ) &= 1 \\ x_{4} \left (0\right ) &= 3 \\ \end{align*}

0.944

12025

7650

\begin{align*} y^{\prime \prime }+\left (3 x -1\right ) y^{\prime }-y&=0 \\ \end{align*}
Series expansion around \(x=-1\).

0.944

12026

10042

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

0.944

12027

18290

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

0.944

12028

19667

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

0.944

12029

24062

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

0.944

12030

1823

\begin{align*} 4 x^{2} y^{\prime \prime }-4 y^{\prime } x +\left (-16 x^{2}+3\right ) y&=8 x^{{5}/{2}} \\ \end{align*}

0.945

12031

4543

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

0.945

12032

5777

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

0.945

12033

21738

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

0.945

12034

2291

\begin{align*} y_{1}^{\prime }&=2 y_{1}+y_{2}-y_{3} \\ y_{2}^{\prime }&=y_{2}+y_{3} \\ y_{3}^{\prime }&=y_{1}+y_{3} \\ \end{align*}

0.946

12035

4601

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

0.946

12036

6552

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

0.946

12037

8158

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

0.946

12038

17489

\begin{align*} y^{\prime \prime }+2 y^{\prime }+50 y&={\mathrm e}^{-t} \csc \left (7 t \right ) \\ \end{align*}

0.946

12039

17788

\begin{align*} y^{\prime \prime }+2 y^{\prime }-3 y&=x \,{\mathrm e}^{x} \\ \end{align*}
Series expansion around \(x=0\).

0.946

12040

1945

\begin{align*} 3 x^{2} y^{\prime \prime }+2 x \left (-2 x^{2}+x +1\right ) y^{\prime }+\left (-8 x^{2}+2 x \right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).

0.947

12041

6924

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

0.947

12042

9429

\begin{align*} y^{\prime \prime } x -4 y^{\prime }+y x&=0 \\ \end{align*}
Series expansion around \(x=0\).

0.947

12043

18929

\begin{align*} y^{\prime \prime }+y&=\left \{\begin {array}{cc} \frac {t}{2} & 0\le t <6 \\ 3 & 6\le t \end {array}\right . \\ y \left (0\right ) &= 6 \\ y^{\prime }\left (0\right ) &= 8 \\ \end{align*}
Using Laplace transform method.

0.947

12044

20436

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

0.947

12045

20867

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

0.947

12046

1492

\begin{align*} y^{\prime \prime }+4 y&=\left \{\begin {array}{cc} 1 & 0\le t <\pi \\ 0 & \pi \le t <\infty \end {array}\right . \\ y \left (0\right ) &= 1 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}
Using Laplace transform method.

0.948

12047

3982

\begin{align*} y^{\prime \prime }+9 y&=15 \sin \left (2 t \right )+\delta \left (t -\frac {\pi }{6}\right ) \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}
Using Laplace transform method.

0.948

12048

9555

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

0.948

12049

9641

\begin{align*} y+y^{\prime }&=\delta \left (t -1\right ) \\ y \left (0\right ) &= 2 \\ \end{align*}
Using Laplace transform method.

0.948

12050

9883

\begin{align*} 2 x^{2} y^{\prime \prime }+5 y^{\prime } x -2 y&=0 \\ \end{align*}

0.948

12051

10354

\begin{align*} y^{\prime } x +2 y x&=\sqrt {x} \\ \end{align*}
Series expansion around \(x=0\).

0.948

12052

20073

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

0.948

12053

24849

\begin{align*} 5 {y^{\prime }}^{2}+6 y^{\prime } x -2 y&=0 \\ \end{align*}

0.948

12054

25407

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

0.948

12055

1804

\begin{align*} y^{\prime \prime }+9 y&=\tan \left (3 x \right ) \\ \end{align*}

0.949

12056

3399

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

0.949

12057

9943

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

0.949

12058

19616

\begin{align*} \left (1-x \right ) x y^{\prime \prime }+\left (\frac {3}{2}-2 x \right ) y^{\prime }+2 y&=0 \\ \end{align*}
Series expansion around \(x=0\).

0.949

12059

650

\begin{align*} x_{1}^{\prime }&=4 x_{1}+x_{2}+x_{3}+7 x_{4} \\ x_{2}^{\prime }&=x_{1}+4 x_{2}+10 x_{3}+x_{4} \\ x_{3}^{\prime }&=x_{1}+10 x_{2}+4 x_{3}+x_{4} \\ x_{4}^{\prime }&=7 x_{1}+x_{2}+x_{3}+4 x_{4} \\ \end{align*}
With initial conditions
\begin{align*} x_{1} \left (0\right ) &= 3 \\ x_{2} \left (0\right ) &= 1 \\ x_{3} \left (0\right ) &= 1 \\ x_{4} \left (0\right ) &= 3 \\ \end{align*}

0.950

12060

12927

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

0.950

12061

16726

\begin{align*} x^{2} y^{\prime \prime }+2 y^{\prime } x -30 y&=0 \\ \end{align*}

0.950

12062

17486

\begin{align*} y^{\prime \prime }+\frac {y}{4}&=\sec \left (\frac {t}{2}\right )+\csc \left (\frac {t}{2}\right ) \\ \end{align*}

0.950

12063

19203

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

0.950

12064

23439

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

0.950

12065

5828

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

0.951

12066

8421

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

0.951

12067

9393

\begin{align*} x^{3} y^{\prime \prime }+\left (-1+\cos \left (2 x \right )\right ) y^{\prime }+2 y x&=0 \\ \end{align*}
Series expansion around \(x=0\).

0.951

12068

16261

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

0.951

12069

3133

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

0.952

12070

3878

\begin{align*} x_{1}^{\prime }&=-x_{1}-2 x_{2}+2 x_{3}-{\mathrm e}^{3 t} \\ x_{2}^{\prime }&=2 x_{1}+4 x_{2}-x_{3}+4 \,{\mathrm e}^{3 t} \\ x_{3}^{\prime }&=3 x_{3}+3 \,{\mathrm e}^{3 t} \\ \end{align*}

0.952

12071

9826

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

0.952

12072

9966

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

0.952

12073

13880

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

0.952

12074

2740

\begin{align*} x_{1}^{\prime }&=x_{1}-5 x_{2} \\ x_{2}^{\prime }&=x_{1}-3 x_{2} \\ x_{3}^{\prime }&=x_{3} \\ \end{align*}

0.953

12075

3565

\begin{align*} x^{2} y^{\prime \prime }-3 y^{\prime } x +4 y&=0 \\ \end{align*}

0.953

12076

9970

\begin{align*} x^{2} y^{\prime \prime }-3 y^{\prime } x +4 \left (x +1\right ) y&=0 \\ \end{align*}
Series expansion around \(x=0\).

0.953

12077

12847

\begin{align*} y^{\prime \prime }-\frac {1}{\left (a y^{2}+b x y+c \,x^{2}+\alpha y+\beta x +\gamma \right )^{{3}/{2}}}&=0 \\ \end{align*}

0.953

12078

14680

\begin{align*} 9 y+6 y^{\prime }+y^{\prime \prime }&=\frac {{\mathrm e}^{-3 x}}{x^{3}} \\ \end{align*}

0.953

12079

19056

\begin{align*} x_{1}^{\prime }&=x_{1}-x_{2}-2 x_{3}+3 x_{4} \\ x_{2}^{\prime }&=2 x_{1}-\frac {3 x_{2}}{2}-x_{3}+\frac {7 x_{4}}{2} \\ x_{3}^{\prime }&=-x_{1}+\frac {x_{2}}{2}-\frac {3 x_{4}}{2} \\ x_{4}^{\prime }&=-2 x_{1}+\frac {3 x_{2}}{2}+3 x_{3}-\frac {7 x_{4}}{2} \\ \end{align*}

0.953

12080

2190

\begin{align*} y^{\prime \prime \prime \prime }-5 y^{\prime \prime \prime }+13 y^{\prime \prime }-19 y^{\prime }+10 y&={\mathrm e}^{x} \left (\left (7+8 x \right ) \cos \left (2 x \right )+\left (8-4 x \right ) \sin \left (2 x \right )\right ) \\ \end{align*}

0.954

12081

5417

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

0.954

12082

10200

\begin{align*} -y+y^{\prime }+y^{\prime \prime } x&=0 \\ \end{align*}
Series expansion around \(x=0\).

0.954

12083

12877

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

0.954

12084

21100

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

0.954

12085

5979

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

0.955

12086

8187

\begin{align*} x^{2} y^{\prime \prime }-7 y^{\prime } x +15 y&=0 \\ \end{align*}

0.955

12087

9892

\begin{align*} x^{2} y^{\prime \prime }+x \left (x -3\right ) y^{\prime }+4 y&=0 \\ \end{align*}
Series expansion around \(x=0\).

0.955

12088

10467

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

0.955

12089

18803

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

0.955

12090

20569

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

0.955

12091

10164

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

0.956

12092

23637

\begin{align*} y^{\prime \prime }-4 y&=-3 \,{\mathrm e}^{t} \\ y \left (0\right ) &= -1 \\ y^{\prime }\left (0\right ) &= 1 \\ \end{align*}
Using Laplace transform method.

0.956

12093

25268

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

0.956

12094

1755

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

0.957

12095

3280

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

0.957

12096

3432

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

0.957

12097

6226

\begin{align*} \operatorname {a0} \operatorname {a1} \left (-k +x \right ) y+\left (1-\operatorname {a0} +\operatorname {a1} +\operatorname {a0} \operatorname {a2} -\operatorname {a3} +\left (\operatorname {a2} +\operatorname {a3} \right ) x +\left (1+\operatorname {a0} +\operatorname {a1} \right ) x^{2}\right ) y^{\prime }+\left (1-x \right ) \left (a -x \right ) x y^{\prime \prime }&=0 \\ \end{align*}

0.957

12098

12871

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

0.957

12099

12979

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

0.957

12100

20137

\begin{align*} 2 y^{\prime }+4 {y^{\prime }}^{3}+y^{\prime \prime }&=0 \\ \end{align*}

0.957