2.3.199 Problems 19801 to 19900

Table 2.971: Main lookup table. Sorted by time used to solve.

#

ID

ODE

Solved?

Maple

Mma

Sympy

time(sec)

19801

8371

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

4.175

19802

20689

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

4.175

19803

25626

\begin{align*} \frac {c y^{\prime \prime }}{\omega ^{2}}+c y&=\cos \left (\omega t \right ) \\ \end{align*}

4.176

19804

5246

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

4.177

19805

19369

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

4.177

19806

20310

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

4.178

19807

27471

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

4.178

19808

26638

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

4.179

19809

8645

\begin{align*} y^{\prime \prime }+2 y^{\prime }+5 y&=\left \{\begin {array}{cc} 10 \sin \left (t \right ) & 0<t <2 \pi \\ 0 & 2 \pi <t \end {array}\right . \\ y \left (\pi \right ) &= 1 \\ y^{\prime }\left (\pi \right ) &= 2 \,{\mathrm e}^{-\pi }-2 \\ \end{align*}

Using Laplace transform method.

4.181

19810

12932

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

4.181

19811

19933

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

4.182

19812

22653

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

4.182

19813

12873

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

4.183

19814

18340

\begin{align*} y^{\prime \prime }+\frac {2 y^{\prime }}{x}-y&=4 \,{\mathrm e}^{x} \\ y \left (-\infty \right ) &= 0 \\ y^{\prime }\left (-1\right ) &= -{\mathrm e}^{-1} \\ \end{align*}

4.184

19815

24969

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

4.184

19816

15115

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

4.185

19817

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*}

4.185

19818

24893

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

4.185

19819

25049

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

4.186

19820

15366

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

4.187

19821

22589

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

4.187

19822

8316

\begin{align*} y^{\prime }&=x \,{\mathrm e}^{y} \\ y \left (1\right ) &= {\frac {5}{2}} \\ \end{align*}

4.189

19823

17063

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

4.189

19824

22766

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

4.190

19825

5210

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

4.191

19826

20092

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

4.191

19827

25853

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

4.191

19828

14707

\begin{align*} x^{2} y^{\prime \prime }-5 x y^{\prime }+10 y&=0 \\ \end{align*}

4.192

19829

15884

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

4.194

19830

5220

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

4.198

19831

10131

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

4.198

19832

6435

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

4.201

19833

4212

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

4.202

19834

24137

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

4.202

19835

25847

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

4.202

19836

14197

\begin{align*} x^{\prime }+2 x&=t^{2}+4 t +7 \\ \end{align*}

4.203

19837

24136

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

4.203

19838

13038

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

4.204

19839

15580

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

4.204

19840

11442

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

4.205

19841

14704

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

4.206

19842

4201

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

4.207

19843

8441

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

4.207

19844

11418

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

4.207

19845

15061

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

4.207

19846

25190

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

4.207

19847

16366

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

4.208

19848

12092

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

4.209

19849

26667

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

4.209

19850

8655

\begin{align*} y^{\prime \prime }+5 y^{\prime }+6 y&=\operatorname {Heaviside}\left (t -1\right )+\delta \left (t -2\right ) \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 1 \\ \end{align*}

Using Laplace transform method.

4.213

19851

3304

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

4.214

19852

14852

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

4.214

19853

15658

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

4.214

19854

765

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

4.216

19855

1158

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

4.217

19856

24931

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

4.217

19857

3264

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

4.218

19858

14703

\begin{align*} x^{2} y^{\prime \prime }-3 x y^{\prime }+13 y&=0 \\ \end{align*}

4.218

19859

8251

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

4.220

19860

18108

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

4.220

19861

25739

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

4.223

19862

4757

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

4.224

19863

4924

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

4.224

19864

21401

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

4.225

19865

20220

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

4.227

19866

2637

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

Series expansion around \(t=0\).

4.229

19867

17937

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

4.230

19868

11453

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

4.233

19869

13219

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

4.235

19870

8375

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

4.238

19871

21553

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

4.238

19872

1702

\begin{align*} {\mathrm e}^{x} \left (y^{2} x^{4}+4 x^{3} y^{2}+1\right )+\left (2 x^{4} y \,{\mathrm e}^{x}+2 y\right ) y^{\prime }&=0 \\ \end{align*}

4.239

19873

3017

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

4.240

19874

14250

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

4.240

19875

21427

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

4.240

19876

4724

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

4.243

19877

7497

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

4.243

19878

5689

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

4.244

19879

4436

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

4.245

19880

5208

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

4.247

19881

20794

\begin{align*} y^{\prime \prime }-\left (8 \,{\mathrm e}^{2 x}+2\right ) y^{\prime }+4 \,{\mathrm e}^{4 x} y&={\mathrm e}^{6 x} \\ \end{align*}

4.248

19882

1214

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

4.249

19883

17935

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

4.251

19884

12069

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

4.252

19885

12966

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

4.252

19886

21454

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

4.252

19887

3294

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

4.254

19888

26610

\begin{align*} y^{\prime \prime }+4 y^{\prime }+3 y&=8 \,{\mathrm e}^{x}+9 \\ y \left (-\infty \right ) &= 3 \\ \end{align*}

4.254

19889

6001

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

4.256

19890

16339

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

4.256

19891

16890

\begin{align*} \left (-x^{4}+x^{3}\right ) y^{\prime \prime }+\left (3 x -1\right ) y^{\prime }+827 y&=0 \\ \end{align*}

Series expansion around \(x=1\).

4.256

19892

22341

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

4.256

19893

12537

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

4.257

19894

17118

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

4.257

19895

24960

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

4.258

19896

7908

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

4.259

19897

24217

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

4.259

19898

16202

\begin{align*} y^{3}-25 y+y^{\prime }&=0 \\ \end{align*}

4.260

19899

19286

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

4.260

19900

15567

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

4.261