里边有各种数学常用的算法,全部用C语言写成,非常实用.
源代码在线查看： espl20.dat
x(i) y(i) dy(i) ddy(i)
5.20000e-01 5.28794e+00 1.86548e+00 -2.79319e-01
8.00000e+00 1.38400e+01 7.43662e-01 -2.06326e-02
1.79500e+01 2.02000e+01 5.32912e-01 -2.17292e-02
2.86500e+01 2.49000e+01 3.68185e-01 -9.06091e-03
5.06500e+01 3.11000e+01 2.08755e-01 -5.43268e-03
1.04600e+02 3.65000e+01 2.93142e-02 -1.21944e-03
1.56600e+02 3.66000e+01 -2.11538e-02 -7.21641e-04
2.60700e+02 3.10000e+01 -8.15142e-02 -4.38020e-04
3.64400e+02 2.09000e+01 -1.06449e-01 -4.28882e-05
4.68000e+02 7.80000e+00 -1.64223e-01 -1.07244e-03
5.07000e+02 1.50000e+00 -1.35256e-01 2.55796e-03
5.20000e+02 2.00000e-01 -4.61151e-02 1.11560e-02
s=1.29044e+04
t(i) z(i) dz(i) ddz(i)
4.00000e+00 1.03314e+01 1.10286e+00 -1.58968e-01
1.40000e+01 1.79266e+01 6.17882e-01 -2.12939e-02
3.00000e+01 2.53889e+01 3.56103e-01 -8.83827e-03
6.00000e+01 3.28250e+01 1.61373e-01 -4.70249e-03
1.30000e+02 3.68774e+01 1.42856e-03 -9.76284e-04
2.30000e+02 3.32829e+01 -6.67831e-02 -5.21662e-04
4.50000e+02 1.05919e+01 -1.46529e-01 -8.93563e-04
5.15000e+02 5.56247e-01 -9.36277e-02 7.84906e-03
