2.2.1 Problems 1 to 100

Table 2.19: Main lookup table. Sorted sequentially by problem number.

#

ODE

CAS classification

Solved?

Maple

Mma

Sympy

time(sec)

1

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

[_quadrature]

0.588

2

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

[_quadrature]

1.377

3

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

[_quadrature]

0.840

4

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

[_quadrature]

0.736

5

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

[_quadrature]

0.468

6

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

[_quadrature]

0.796

7

\begin{align*} y^{\prime }&=\frac {10}{x^{2}+1} \\ y \left (0\right ) &= 0 \\ \end{align*}

[_quadrature]

0.479

8

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

[_quadrature]

0.480

9

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

[_quadrature]

0.579

10

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

[_quadrature]

0.461

11

\begin{align*} x^{\prime \prime }&=50 \\ x \left (0\right ) &= 20 \\ x^{\prime }\left (0\right ) &= 10 \\ \end{align*}

[[_2nd_order, _quadrature]]

0.880

12

\begin{align*} x^{\prime \prime }&=-20 \\ x \left (0\right ) &= 5 \\ x^{\prime }\left (0\right ) &= -15 \\ \end{align*}

[[_2nd_order, _quadrature]]

0.865

13

\begin{align*} x^{\prime \prime }&=3 t \\ x \left (0\right ) &= 0 \\ x^{\prime }\left (0\right ) &= 5 \\ \end{align*}

[[_2nd_order, _quadrature]]

0.895

14

\begin{align*} x^{\prime \prime }&=2 t +1 \\ x \left (0\right ) &= 4 \\ x^{\prime }\left (0\right ) &= -7 \\ \end{align*}

[[_2nd_order, _quadrature]]

0.920

15

\begin{align*} x^{\prime \prime }&=4 \left (t +3\right )^{2} \\ x \left (0\right ) &= 1 \\ x^{\prime }\left (0\right ) &= -1 \\ \end{align*}

[[_2nd_order, _quadrature]]

1.052

16

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

[[_2nd_order, _quadrature]]

2.149

17

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

[[_2nd_order, _quadrature]]

1.085

18

\begin{align*} x^{\prime \prime }&=50 \sin \left (5 t \right ) \\ x \left (0\right ) &= 8 \\ x^{\prime }\left (0\right ) &= -10 \\ \end{align*}

[[_2nd_order, _quadrature]]

1.183

19

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

[[_linear, ‘class A‘]]

1.984

20

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

[[_linear, ‘class A‘]]

1.161

21

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

[[_linear, ‘class A‘]]

1.963

22

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

[[_linear, ‘class A‘]]

1.175

23

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

[[_linear, ‘class A‘]]

1.382

24

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

[[_linear, ‘class A‘]]

1.355

25

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

[[_linear, ‘class A‘]]

1.792

26

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

[[_linear, ‘class A‘]]

1.967

27

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

[_separable]

3.783

28

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

[_separable]

2.941

29

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

[_quadrature]

3.355

30

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

[_quadrature]

40.514

31

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

[[_homogeneous, ‘class C‘], _dAlembert]

2.204

32

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

[[_homogeneous, ‘class C‘], _dAlembert]

2.057

33

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

[_separable]

3.276

34

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

[_separable]

2.968

35

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

[_quadrature]

1.568

36

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

[_Riccati]

5.562

37

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

[[_linear, ‘class A‘]]

1.369

38

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

[[_linear, ‘class A‘]]

1.409

39

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

[_Riccati]

24.157

40

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

[[_Riccati, _special]]

0.466

41

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

[_separable]

2.646

42

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

[_separable]

4.006

43

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

[_separable]

2.753

44

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

[_separable]

3.133

45

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

[_separable]

2.806

46

\begin{align*} y^{\prime }&=3 \sqrt {y x} \\ \end{align*}

[[_homogeneous, ‘class G‘]]

0.581

47

\begin{align*} y^{\prime }&=64^{{1}/{3}} \left (y x \right )^{{1}/{3}} \\ \end{align*}

[[_homogeneous, ‘class G‘]]

0.359

48

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

[_separable]

2.017

49

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

[_separable]

3.171

50

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

[_separable]

4.505

51

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

[_separable]

4.502

52

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

[_separable]

3.059

53

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

[_separable]

5.348

54

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

[_separable]

2.665

55

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

[_separable]

3.043

56

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

[_separable]

2.892

57

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

[_separable]

2.660

58

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

[_separable]

4.223

59

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

[_separable]

5.152

60

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

[_separable]

4.241

61

\begin{align*} 2 y y^{\prime }&=\frac {x}{\sqrt {x^{2}-16}} \\ y \left (5\right ) &= 2 \\ \end{align*}

[_separable]

3.898

62

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

[_separable]

3.688

63

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

[_quadrature]

1.530

64

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

[_separable]

5.106

65

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

[_separable]

3.167

66

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

[_separable]

3.343

67

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

[_separable]

2.963

68

\begin{align*} 2 \sqrt {x}\, y^{\prime }&=\cos \left (y\right )^{2} \\ y \left (4\right ) &= \frac {\pi }{4} \\ \end{align*}

[_separable]

2.861

69

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

[_quadrature]

2.320

70

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

[_quadrature]

1.171

71

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

[_quadrature]

4.694

72

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

[_quadrature]

16.256

73

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

[_quadrature]

1.084

74

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

[[_linear, ‘class A‘]]

1.671

75

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

[[_linear, ‘class A‘]]

2.835

76

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

[_linear]

2.648

77

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

[_linear]

3.908

78

\begin{align*} y^{\prime } x +5 y&=7 x^{2} \\ y \left (2\right ) &= 5 \\ \end{align*}

[_linear]

3.057

79

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

[_linear]

1.653

80

\begin{align*} y+3 y^{\prime } x&=12 x \\ \end{align*}

[_linear]

3.612

81

\begin{align*} -y+y^{\prime } x&=x \\ y \left (1\right ) &= 7 \\ \end{align*}

[_linear]

2.356

82

\begin{align*} 2 y^{\prime } x -3 y&=9 x^{3} \\ \end{align*}

[_linear]

2.548

83

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

[_separable]

2.426

84

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

[_linear]

3.003

85

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

[[_linear, ‘class A‘]]

1.529

86

\begin{align*} y^{\prime } x -3 y&=x^{3} \\ y \left (1\right ) &= 10 \\ \end{align*}

[_linear]

2.116

87

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

[_separable]

2.228

88

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

[_separable]

2.918

89

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

[_linear]

2.358

90

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

[_linear]

2.940

91

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

[_linear]

2.524

92

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

[_separable]

2.345

93

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

[_linear]

3.971

94

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

[_linear]

3.870

95

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

[_linear]

1.214

96

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

[_separable]

2.544

97

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

[_linear]

2.855

98

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

[_linear]

2.604

99

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

[[_linear, ‘class A‘]]

2.287

100

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

[_linear]

2.082