2.2.176 Problems 17501 to 17600

Table 2.353: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

time (sec)

17501

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

[[_2nd_order, _with_linear_symmetries]]

0.148

17502

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

[_Laguerre]

0.158

17503

\[ {}y^{\prime \prime }+a \left (x y^{\prime }+y\right ) = 0 \]

[[_2nd_order, _exact, _linear, _homogeneous]]

0.128

17504

\[ {}y^{\prime \prime }+2 y^{\prime }-3 y = 0 \]

[[_2nd_order, _missing_x]]

0.848

17505

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

[[_2nd_order, _missing_x]]

0.842

17506

\[ {}y^{\prime \prime }-4 y^{\prime }+4 y = 0 \]

[[_2nd_order, _missing_x]]

0.959

17507

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

[[_2nd_order, _missing_x]]

0.964

17508

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

[[_2nd_order, _missing_x]]

2.082

17509

\[ {}y^{\prime \prime }-2 y^{\prime }+6 y = 0 \]

[[_2nd_order, _missing_x]]

2.075

17510

\[ {}4 y^{\prime \prime }-4 y^{\prime }+y = 0 \]

[[_2nd_order, _missing_x]]

0.970

17511

\[ {}2 y^{\prime \prime }-3 y^{\prime }+y = 0 \]

[[_2nd_order, _missing_x]]

0.861

17512

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

[[_2nd_order, _missing_x]]

0.876

17513

\[ {}9 y^{\prime \prime }+12 y^{\prime }+4 y = 0 \]

[[_2nd_order, _missing_x]]

0.983

17514

\[ {}y^{\prime \prime }+2 y^{\prime }-8 y = 0 \]

[[_2nd_order, _missing_x]]

0.859

17515

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

[[_2nd_order, _missing_x]]

2.020

17516

\[ {}y^{\prime \prime }+5 y^{\prime } = 0 \]

[[_2nd_order, _missing_x]]

1.903

17517

\[ {}4 y^{\prime \prime }-9 y = 0 \]

[[_2nd_order, _missing_x]]

2.085

17518

\[ {}25 y^{\prime \prime }-20 y^{\prime }+4 y = 0 \]

[[_2nd_order, _missing_x]]

0.961

17519

\[ {}y^{\prime \prime }-4 y^{\prime }+16 y = 0 \]

[[_2nd_order, _missing_x]]

2.318

17520

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

[[_2nd_order, _missing_x]]

2.571

17521

\[ {}y^{\prime \prime }+2 y^{\prime }+\frac {5 y}{4} = 0 \]

[[_2nd_order, _missing_x]]

1.577

17522

\[ {}y^{\prime \prime }-9 y^{\prime }+9 y = 0 \]

[[_2nd_order, _missing_x]]

1.139

17523

\[ {}y^{\prime \prime }-2 y^{\prime }-2 y = 0 \]

[[_2nd_order, _missing_x]]

1.104

17524

\[ {}y^{\prime \prime }+4 y^{\prime }+4 y = 0 \]

[[_2nd_order, _missing_x]]

0.957

17525

\[ {}9 y^{\prime \prime }-24 y^{\prime }+16 y = 0 \]

[[_2nd_order, _missing_x]]

0.961

17526

\[ {}4 y^{\prime \prime }+9 y = 0 \]

[[_2nd_order, _missing_x]]

2.292

17527

\[ {}4 y^{\prime \prime }+9 y^{\prime }-9 y = 0 \]

[[_2nd_order, _missing_x]]

0.872

17528

\[ {}y^{\prime \prime }+y^{\prime }+\frac {5 y}{4} = 0 \]

[[_2nd_order, _missing_x]]

2.062

17529

\[ {}y^{\prime \prime }+4 y^{\prime }+\frac {25 y}{4} = 0 \]

[[_2nd_order, _missing_x]]

1.788

17530

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

[[_2nd_order, _missing_x]]

1.411

17531

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

[[_2nd_order, _missing_x]]

2.259

17532

\[ {}9 y^{\prime \prime }-12 y^{\prime }+4 y = 0 \]
i.c.

[[_2nd_order, _missing_x]]

1.390

17533

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

[[_2nd_order, _missing_x]]

1.168

17534

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

[[_2nd_order, _missing_x]]

2.276

17535

\[ {}6 y^{\prime \prime }-5 y^{\prime }+y = 0 \]
i.c.

[[_2nd_order, _missing_x]]

1.201

17536

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

[[_2nd_order, _missing_x]]

1.345

17537

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

[[_2nd_order, _missing_x]]

2.892

17538

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

[[_2nd_order, _missing_x]]

2.048

17539

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

[[_2nd_order, _missing_x]]

3.161

17540

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

[[_2nd_order, _missing_x]]

1.390

17541

\[ {}y^{\prime \prime }+6 y^{\prime }+3 y = 0 \]
i.c.

[[_2nd_order, _missing_x]]

1.714

17542

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

[[_2nd_order, _missing_x]]

2.477

17543

\[ {}2 y^{\prime \prime }+y^{\prime }-4 y = 0 \]
i.c.

[[_2nd_order, _missing_x]]

1.648

17544

\[ {}y^{\prime \prime }+8 y^{\prime }-9 y = 0 \]
i.c.

[[_2nd_order, _missing_x]]

1.459

17545

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

[[_2nd_order, _missing_x]]

2.490

17546

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

[[_2nd_order, _missing_x]]

2.749

17547

\[ {}a \,x^{2} y^{\prime \prime }+b x y^{\prime }+c y = 0 \]

[[_Emden, _Fowler]]

2.230

17548

\[ {}x^{2} y^{\prime \prime }+x y^{\prime }+4 y = 0 \]

[[_Emden, _Fowler], [_2nd_order, _linear, ‘_with_symmetry_[0,F(x)]‘]]

1.336

17549

\[ {}x^{2} y^{\prime \prime }+4 x y^{\prime }+2 y = 0 \]

[[_2nd_order, _exact, _linear, _homogeneous]]

1.233

17550

\[ {}x^{2} y^{\prime \prime }+3 x y^{\prime }+\frac {5 y}{4} = 0 \]

[[_Emden, _Fowler]]

1.871

17551

\[ {}x^{2} y^{\prime \prime }-4 x y^{\prime }-6 y = 0 \]

[[_2nd_order, _exact, _linear, _homogeneous]]

0.957

17552

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

[[_2nd_order, _exact, _linear, _homogeneous]]

0.697

17553

\[ {}x^{2} y^{\prime \prime }-5 x y^{\prime }+9 y = 0 \]

[[_Emden, _Fowler]]

0.902

17554

\[ {}x^{2} y^{\prime \prime }+2 x y^{\prime }+4 y = 0 \]

[[_Emden, _Fowler]]

2.688

17555

\[ {}2 x^{2} y^{\prime \prime }-4 x y^{\prime }+6 y = 0 \]

[[_Emden, _Fowler]]

2.668

17556

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

[[_2nd_order, _exact, _linear, _homogeneous]]

1.602

17557

\[ {}4 x^{2} y^{\prime \prime }+8 x y^{\prime }+17 y = 0 \]
i.c.

[[_Emden, _Fowler]]

3.973

17558

\[ {}x^{2} y^{\prime \prime }-5 x y^{\prime }+9 y = 0 \]
i.c.

[[_Emden, _Fowler]]

1.493

17559

\[ {}x^{2} y^{\prime \prime }+3 x y^{\prime }+5 y = 0 \]
i.c.

[[_Emden, _Fowler]]

3.994

17560

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

[[_2nd_order, _missing_x]]

2.375

17561

\[ {}y^{\prime \prime }+\frac {y^{\prime }}{4}+2 y = 0 \]
i.c.

[[_2nd_order, _missing_x]]

2.904

17562

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

[[_2nd_order, _missing_x]]

10.243

17563

\[ {}y^{\prime \prime }-2 y^{\prime }-3 y = 3 \,{\mathrm e}^{2 t} \]

[[_2nd_order, _with_linear_symmetries]]

1.138

17564

\[ {}y^{\prime \prime }+2 y^{\prime }+5 y = 3 \sin \left (2 t \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

15.096

17565

\[ {}y^{\prime \prime }-2 y^{\prime }-3 y = -3 t \,{\mathrm e}^{-t} \]

[[_2nd_order, _linear, _nonhomogeneous]]

1.200

17566

\[ {}y^{\prime \prime }+2 y^{\prime } = 3+4 \sin \left (2 t \right ) \]

[[_2nd_order, _missing_y]]

3.210

17567

\[ {}y^{\prime \prime }+9 y = t^{2} {\mathrm e}^{3 t}+6 \]

[[_2nd_order, _linear, _nonhomogeneous]]

3.610

17568

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

[[_2nd_order, _with_linear_symmetries]]

1.117

17569

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

[[_2nd_order, _with_linear_symmetries]]

1.146

17570

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

[[_2nd_order, _with_linear_symmetries]]

1.159

17571

\[ {}y^{\prime \prime }+2 y^{\prime }+y = 3 \,{\mathrm e}^{-t} \]

[[_2nd_order, _with_linear_symmetries]]

1.188

17572

\[ {}4 y^{\prime \prime }-4 y^{\prime }+y = 16 \,{\mathrm e}^{\frac {t}{2}} \]

[[_2nd_order, _with_linear_symmetries]]

1.157

17573

\[ {}2 y^{\prime \prime }+3 y^{\prime }+y = t^{2}+3 \sin \left (t \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

1.835

17574

\[ {}y^{\prime \prime }+y = 3 \sin \left (2 t \right )+t \cos \left (2 t \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

2.773

17575

\[ {}u^{\prime \prime }+w_{0}^{2} u = \cos \left (w t \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

2.639

17576

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

[[_2nd_order, _linear, _nonhomogeneous]]

29.985

17577

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

[[_2nd_order, _linear, _nonhomogeneous]]

4.338

17578

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

[[_2nd_order, _with_linear_symmetries]]

1.195

17579

\[ {}y^{\prime \prime }+4 y = t^{2}+3 \,{\mathrm e}^{t} \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

5.536

17580

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

[[_2nd_order, _linear, _nonhomogeneous]]

1.609

17581

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

[[_2nd_order, _linear, _nonhomogeneous]]

1.242

17582

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

[[_2nd_order, _linear, _nonhomogeneous]]

4.165

17583

\[ {}y^{\prime \prime }+2 y^{\prime }+5 y = 4 \,{\mathrm e}^{-t} \cos \left (2 t \right ) \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

8.020

17584

\[ {}y^{\prime \prime }+3 y^{\prime } = 2 t^{4}+t^{2} {\mathrm e}^{-3 t}+\sin \left (3 t \right ) \]

[[_2nd_order, _missing_y]]

74.269

17585

\[ {}y^{\prime \prime }+y = t \left (1+\sin \left (t \right )\right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

3.201

17586

\[ {}y^{\prime \prime }-5 y^{\prime }+6 y = {\mathrm e}^{t} \cos \left (2 t \right )+{\mathrm e}^{2 t} \left (3 t +4\right ) \sin \left (t \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

6.051

17587

\[ {}y^{\prime \prime }+2 y^{\prime }+2 y = 3 \,{\mathrm e}^{-t}+2 \,{\mathrm e}^{-t} \cos \left (t \right )+4 \,{\mathrm e}^{-t} t^{2} \sin \left (t \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

16.003

17588

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

[[_2nd_order, _linear, _nonhomogeneous]]

31.535

17589

\[ {}y^{\prime \prime }+4 y = t^{2} \sin \left (2 t \right )+\left (6 t +7\right ) \cos \left (2 t \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

6.358

17590

\[ {}y^{\prime \prime }+3 y^{\prime }+2 y = {\mathrm e}^{t} \left (t^{2}+1\right ) \sin \left (2 t \right )+3 \,{\mathrm e}^{-t} \cos \left (t \right )+4 \,{\mathrm e}^{t} \]

[[_2nd_order, _linear, _nonhomogeneous]]

74.162

17591

\[ {}y^{\prime \prime }+2 y^{\prime }+5 y = 3 t \,{\mathrm e}^{-t} \cos \left (2 t \right )-2 t \,{\mathrm e}^{-2 t} \cos \left (t \right ) \]

[[_2nd_order, _linear, _nonhomogeneous]]

127.983

17592

\[ {}y^{\prime \prime }-3 y^{\prime }-4 y = 2 \,{\mathrm e}^{-t} \]

[[_2nd_order, _with_linear_symmetries]]

1.172

17593

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

[[_2nd_order, _with_linear_symmetries]]

1.414

17594

\[ {}x^{2} y^{\prime \prime }+7 x y^{\prime }+5 y = x \]

[[_2nd_order, _exact, _linear, _nonhomogeneous]]

1.507

17595

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

[[_2nd_order, _with_linear_symmetries]]

2.102

17596

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

[[_2nd_order, _linear, _nonhomogeneous]]

5.159

17597

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

[[_2nd_order, _linear, _nonhomogeneous]]

7.214

17598

\[ {}y^{\prime \prime }+2 y^{\prime }+5 y = \left \{\begin {array}{cc} 1 & 0\le t \le \frac {\pi }{2} \\ 0 & \frac {\pi }{2}<t \end {array}\right . \]
i.c.

[[_2nd_order, _linear, _nonhomogeneous]]

18.703

17599

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

[[_2nd_order, _linear, _nonhomogeneous]]

4.386

17600

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

[[_2nd_order, _linear, _nonhomogeneous]]

77.405