2.2.169 Problems 16801 to 16900

Table 2.355: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

Maple

Mma

Sympy

time(sec)

16801

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

Using Laplace transform method.

[_quadrature]

0.279

16802

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

Using Laplace transform method.

[_quadrature]

0.278

16803

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

Using Laplace transform method.

[[_2nd_order, _quadrature]]

0.205

16804

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

Using Laplace transform method.

[[_2nd_order, _quadrature]]

0.240

16805

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

Using Laplace transform method.

[[_linear, ‘class A‘]]

0.645

16806

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

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

0.573

16807

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

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

0.707

16808

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

Using Laplace transform method.

[[_linear, ‘class A‘]]

0.794

16809

\begin{align*} y^{\prime \prime }+3 y^{\prime }&=\delta \left (t \right ) \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _missing_y]]

0.228

16810

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

Using Laplace transform method.

[[_2nd_order, _missing_y]]

0.938

16811

\begin{align*} y^{\prime \prime }+16 y&=\delta \left (t -2\right ) \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

0.867

16812

\begin{align*} y^{\prime \prime }-16 y&=\delta \left (t -10\right ) \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

0.862

16813

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

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

0.147

16814

\begin{align*} y^{\prime \prime }+4 y^{\prime }-12 y&=\delta \left (t \right ) \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

0.256

16815

\begin{align*} y^{\prime \prime }+4 y^{\prime }-12 y&=\delta \left (-3+t \right ) \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

1.122

16816

\begin{align*} y^{\prime \prime }+6 y^{\prime }+9 y&=\delta \left (-4+t \right ) \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

0.760

16817

\begin{align*} y^{\prime \prime }-12 y^{\prime }+45 y&=\delta \left (t \right ) \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 0 \\ \end{align*}

Using Laplace transform method.

[[_2nd_order, _linear, _nonhomogeneous]]

0.273

16818

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

Using Laplace transform method.

[[_3rd_order, _missing_y]]

1.292

16819

\begin{align*} y^{\prime \prime \prime \prime }-16 y&=\delta \left (t \right ) \\ y \left (0\right ) &= 0 \\ y^{\prime }\left (0\right ) &= 0 \\ y^{\prime \prime }\left (0\right ) &= 0 \\ y^{\prime \prime \prime }\left (0\right ) &= 0 \\ \end{align*}

Using Laplace transform method.

[[_high_order, _linear, _nonhomogeneous]]

0.370

16820

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

Series expansion around \(x=0\).

[_quadrature]

0.431

16821

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

Series expansion around \(x=0\).

[_separable]

0.412

16822

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

Series expansion around \(x=0\).

[_separable]

0.441

16823

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

Series expansion around \(x=0\).

[_separable]

0.389

16824

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

Series expansion around \(x=0\).

[_separable]

0.382

16825

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

Series expansion around \(x=0\).

[_separable]

0.434

16826

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

Series expansion around \(x=3\).

[_separable]

0.514

16827

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

Series expansion around \(x=5\).

[_separable]

0.489

16828

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

Series expansion around \(x=0\).

[_separable]

0.488

16829

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

Series expansion around \(x=0\).

[_separable]

0.438

16830

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

Series expansion around \(x=0\).

[_separable]

0.467

16831

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

Series expansion around \(x=0\).

[_separable]

0.479

16832

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

Series expansion around \(x=0\).

[[_2nd_order, _exact, _linear, _homogeneous]]

0.439

16833

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

Series expansion around \(x=0\).

[[_2nd_order, _exact, _linear, _homogeneous]]

0.435

16834

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

Series expansion around \(x=0\).

[[_2nd_order, _missing_y]]

0.430

16835

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

Series expansion around \(x=0\).

[[_Emden, _Fowler]]

0.362

16836

\begin{align*} \left (-x^{2}+4\right ) y^{\prime \prime }-5 x y^{\prime }-3 y&=0 \\ \end{align*}

Series expansion around \(x=0\).

[[_2nd_order, _exact, _linear, _homogeneous]]

0.528

16837

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

Series expansion around \(x=0\).

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

0.501

16838

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

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

0.428

16839

\begin{align*} \left (x^{2}-6 x \right ) y^{\prime \prime }+4 \left (x -3\right ) y^{\prime }+2 y&=0 \\ \end{align*}

Series expansion around \(x=0\).

[[_2nd_order, _exact, _linear, _homogeneous]]

0.955

16840

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

Series expansion around \(x=-2\).

[[_2nd_order, _with_linear_symmetries]]

0.500

16841

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

Series expansion around \(x=1\).

[[_2nd_order, _exact, _linear, _homogeneous]]

0.546

16842

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

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

0.523

16843

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

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

0.500

16844

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

Series expansion around \(x=0\).

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

0.604

16845

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

Series expansion around \(x=0\).

[_Gegenbauer]

0.573

16846

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

Series expansion around \(x=0\).

[[_2nd_order, _missing_x]]

0.344

16847

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

Series expansion around \(x=0\).

[[_Emden, _Fowler]]

0.323

16848

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

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

0.426

16849

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

Series expansion around \(x=\frac {\pi }{2}\).

[[_2nd_order, _with_linear_symmetries]]

0.517

16850

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

Series expansion around \(x=0\).

[[_2nd_order, _linear, _nonhomogeneous]]

0.382

16851

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

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

0.651

16852

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

Series expansion around \(x=0\).

[[_2nd_order, _missing_x], [_2nd_order, _reducible, _mu_x_y1]]

0.239

16853

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

Series expansion around \(x=0\).

[_quadrature]

0.338

16854

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

Series expansion around \(x=0\).

[_separable]

0.520

16855

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

Series expansion around \(x=0\).

[_separable]

0.589

16856

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

Series expansion around \(x=2\).

[[_2nd_order, _with_linear_symmetries]]

12.033

16857

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

Series expansion around \(x=2\).

[[_2nd_order, _with_linear_symmetries]]

4.971

16858

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

Series expansion around \(x=2\).

[[_2nd_order, _with_linear_symmetries]]

18.286

16859

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

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

5.914

16860

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

Series expansion around \(x=3\).

[[_2nd_order, _with_linear_symmetries]]

1.344

16861

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

Series expansion around \(x=2\).

[[_2nd_order, _with_linear_symmetries]]

0.606

16862

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

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

0.769

16863

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

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

2.102

16864

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

Series expansion around \(x=0\).

[_separable]

0.464

16865

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

Series expansion around \(x=0\).

[_separable]

0.524

16866

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

Series expansion around \(x=0\).

[_separable]

0.500

16867

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

Series expansion around \(x=1\).

[_separable]

0.640

16868

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

Series expansion around \(x=1\).

[[_2nd_order, _with_linear_symmetries]]

0.767

16869

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

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

0.730

16870

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

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

0.653

16871

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

Series expansion around \(x=1\).

[_Titchmarsh]

0.678

16872

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

Series expansion around \(x=1\).

[[_Emden, _Fowler]]

0.829

16873

\begin{align*} y^{\prime \prime }+\left (6 x^{2}+2 x +1\right ) y^{\prime }+\left (2+12 x \right ) y&=0 \\ \end{align*}

Series expansion around \(x=0\).

[[_2nd_order, _exact, _linear, _homogeneous]]

0.636

16874

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

Series expansion around \(x=0\).

[_separable]

0.786

16875

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

Series expansion around \(x=0\).

[_separable]

1.076

16876

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

Series expansion around \(x=0\).

[_separable]

1.115

16877

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

Series expansion around \(x=0\).

[_separable]

0.993

16878

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

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

0.766

16879

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

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

0.901

16880

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

Series expansion around \(x=0\).

[[_2nd_order, _exact, _linear, _homogeneous]]

0.861

16881

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

Series expansion around \(x=1\).

[[_2nd_order, _with_linear_symmetries]]

0.849

16882

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

Series expansion around \(x=0\).

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

0.445

16883

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

Series expansion around \(x=0\).

[[_2nd_order, _exact, _linear, _homogeneous]]

0.813

16884

\begin{align*} \left (x -1\right )^{2} y^{\prime \prime }-5 \left (x -1\right ) y^{\prime }+9 y&=0 \\ \end{align*}

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

0.596

16885

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

Series expansion around \(x=0\).

[[_2nd_order, _missing_y]]

0.467

16886

\begin{align*} 3 \left (x -2\right )^{2} y^{\prime \prime }-4 \left (x -5\right ) y^{\prime }+2 y&=0 \\ \end{align*}

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

0.664

16887

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

Series expansion around \(x=0\).

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

0.651

16888

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

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

2.989

16889

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

Series expansion around \(x=2\).

[[_Emden, _Fowler]]

0.734

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 \(x=1\).

[[_2nd_order, _with_linear_symmetries]]

4.256

16891

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

Series expansion around \(x=3\).

[[_2nd_order, _with_linear_symmetries]]

0.889

16892

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

Series expansion around \(x=4\).

[[_2nd_order, _with_linear_symmetries]]

2.017

16893

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

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

0.924

16894

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

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

4.606

16895

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

Series expansion around \(x=0\).

[[_Emden, _Fowler]]

0.510

16896

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

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

0.823

16897

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

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

0.744

16898

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

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

3.239

16899

\begin{align*} \left (-9 x^{4}+x^{2}\right ) y^{\prime \prime }-6 x y^{\prime }+10 y&=0 \\ \end{align*}

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

0.859

16900

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

Series expansion around \(x=0\).

[[_2nd_order, _with_linear_symmetries]]

0.775