2.3.207 Problems 20601 to 20700

Table 2.987: Main lookup table. Sorted by time used to solve.

#

ID

ODE

Solved?

Maple

Mma

Sympy

time(sec)

20601

5388

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

4.859

20602

22775

\begin{align*} x^{4} y^{\prime \prime }+2 x^{3} y^{\prime }+y&=\frac {1}{x^{2}} \\ \end{align*}

4.861

20603

7872

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

4.862

20604

17246

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

4.863

20605

1570

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

4.865

20606

17123

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

4.866

20607

5970

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

4.867

20608

9089

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

4.868

20609

26153

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

4.868

20610

4232

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

4.869

20611

6334

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

4.870

20612

17335

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

4.871

20613

11359

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

4.872

20614

12267

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

4.872

20615

14718

\begin{align*} x^{2} y^{\prime \prime }-4 x y^{\prime }+6 y&=0 \\ y \left (2\right ) &= 0 \\ y^{\prime }\left (2\right ) &= 4 \\ \end{align*}

4.872

20616

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*}

4.872

20617

26888

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

4.876

20618

4645

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

4.877

20619

7934

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

4.878

20620

4636

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

4.879

20621

17221

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

4.879

20622

17911

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

4.879

20623

24973

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

4.879

20624

5484

\begin{align*} 3 {y^{\prime }}^{2} x -6 y y^{\prime }+x +2 y&=0 \\ \end{align*}

4.881

20625

4396

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

4.885

20626

25042

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

4.885

20627

8362

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

4.886

20628

14516

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

4.886

20629

22035

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

4.888

20630

19283

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

4.889

20631

24235

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

4.891

20632

26445

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

4.892

20633

13002

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

4.893

20634

26872

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

4.895

20635

16309

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

4.896

20636

17349

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

4.898

20637

4110

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

4.901

20638

6810

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

4.901

20639

9553

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

Series expansion around \(x=0\).

4.902

20640

13302

\begin{align*} y^{\prime }&=a \,{\mathrm e}^{\lambda x} y^{2}+b \,{\mathrm e}^{-\lambda x} \\ \end{align*}

4.902

20641

3658

\begin{align*} y^{\prime }-\frac {3 y}{2 x}&=6 y^{{1}/{3}} x^{2} \ln \left (x \right ) \\ \end{align*}

4.904

20642

25018

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

4.905

20643

15592

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

4.907

20644

17713

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

Series expansion around \(x=0\).

4.910

20645

24307

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

4.910

20646

6440

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

4.911

20647

17120

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

4.913

20648

2472

\begin{align*} \sqrt {t}\, \sin \left (t \right ) y+y^{\prime }&=0 \\ \end{align*}

4.914

20649

6320

\begin{align*} y^{\prime \prime }&=\operatorname {f2} \left (x \right )+\operatorname {f3} \left (x \right ) y+\operatorname {f1} \left (x \right ) y^{2}+y^{3}+\left (3 \operatorname {f1} \left (x \right )-y\right ) y^{\prime } \\ \end{align*}

4.914

20650

26270

\begin{align*} y+y \sqrt {x^{2} y^{4}+1}+2 x y^{\prime }&=0 \\ \end{align*}

4.914

20651

5217

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

4.915

20652

14969

\begin{align*} 4 t^{2} x^{\prime \prime }+8 x^{\prime } t +5 x&=0 \\ x \left (1\right ) &= 2 \\ x^{\prime }\left (1\right ) &= 0 \\ \end{align*}

4.919

20653

1134

\begin{align*} x y^{\prime }&=\sqrt {1-y^{2}} \\ \end{align*}

4.921

20654

22058

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

4.922

20655

24983

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

4.923

20656

11880

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

4.924

20657

23173

\begin{align*} \left (1-x \right ) y^{\prime }+y x&=x \left (x -1\right )^{2} \\ y \left (5\right ) &= 24 \\ \end{align*}

4.925

20658

1201

\begin{align*} 2 x -2 \,{\mathrm e}^{y x} \sin \left (2 x \right )+{\mathrm e}^{y x} \cos \left (2 x \right ) y+\left (-3+{\mathrm e}^{y x} x \cos \left (2 x \right )\right ) y^{\prime }&=0 \\ \end{align*}

4.926

20659

22421

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

4.926

20660

27447

\begin{align*} y^{\prime }+x y^{{1}/{3}}&=3 y \\ \end{align*}

4.929

20661

17127

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

4.931

20662

19414

\begin{align*} \frac {\cos \left (y\right )}{x +3}-\left (\sin \left (y\right ) \ln \left (5 x +15\right )-\frac {1}{y}\right ) y^{\prime }&=0 \\ \end{align*}

4.931

20663

4773

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

4.934

20664

8189

\begin{align*} 3 x y^{\prime }+5 y&=10 \\ \end{align*}

4.934

20665

13965

\begin{align*} \left (a \,{\mathrm e}^{\lambda x}+b \right ) y^{\prime \prime }+\left (c \,{\mathrm e}^{\lambda x}+d \right ) y^{\prime }+\left (n \,{\mathrm e}^{\lambda x}+m \right ) y&=0 \\ \end{align*}

4.936

20666

7144

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

4.938

20667

9060

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

4.939

20668

18494

\begin{align*} y^{\prime }&=\frac {x \left (x^{2}+1\right ) y^{5}}{6} \\ y \left (0\right ) &= -2^{{1}/{3}} \\ \end{align*}

4.940

20669

4950

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

4.941

20670

4997

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

4.941

20671

21720

\begin{align*} y^{\prime \prime }+2 y^{\prime }+5 y&=\left \{\begin {array}{cc} 1 & 0\le t <\pi \\ 0 & \pi \le t \end {array}\right . \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

Using Laplace transform method.

4.943

20672

13285

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

4.944

20673

26867

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

4.945

20674

12319

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

4.946

20675

3469

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

4.948

20676

8355

\begin{align*} n^{\prime }+n&=n t \,{\mathrm e}^{t +2} \\ \end{align*}

4.948

20677

17962

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

4.950

20678

12127

\begin{align*} y^{\prime }&=\frac {1}{-x +\left (\frac {1}{y}+1\right ) x +\textit {\_F1} \left (\left (\frac {1}{y}+1\right ) x \right ) x^{2}-\textit {\_F1} \left (\left (\frac {1}{y}+1\right ) x \right ) x^{2} \left (\frac {1}{y}+1\right )} \\ \end{align*}

4.951

20679

12693

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

4.953

20680

26265

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

4.953

20681

5283

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

4.954

20682

15519

\begin{align*} x^{2} y^{\prime \prime }-4 x y^{\prime }+6 y&=0 \\ y \left (2\right ) &= 4 \\ y^{\prime }\left (1\right ) &= 0 \\ \end{align*}

4.954

20683

18801

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

4.954

20684

21409

\begin{align*} 2 y-8 x^{2}+x y^{\prime }&=0 \\ \end{align*}

4.954

20685

7529

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

4.957

20686

26689

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

4.957

20687

18510

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

4.958

20688

4915

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

4.959

20689

25017

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

4.959

20690

5058

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

4.962

20691

9207

\begin{align*} \frac {1}{y}-\frac {x y^{\prime }}{y^{2}}&=0 \\ \end{align*}

4.963

20692

2921

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

4.964

20693

12313

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

4.966

20694

2337

\begin{align*} 2 t \sin \left (y\right )+{\mathrm e}^{t} y^{3}+\left (\cos \left (y\right ) t^{2}+3 \,{\mathrm e}^{t} y^{2}\right ) y^{\prime }&=0 \\ \end{align*}

4.967

20695

22047

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

4.967

20696

13308

\begin{align*} y^{\prime }&=a \,x^{n} y^{2}+\lambda y-a \,b^{2} x^{n} {\mathrm e}^{2 \lambda x} \\ \end{align*}

4.968

20697

19931

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

4.968

20698

22354

\begin{align*} y^{\prime }&=\frac {1}{x^{2}+4 y^{2}} \\ \end{align*}

4.968

20699

22039

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

4.969

20700

6504

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

4.970