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lionel770

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[交流] 【分享】积分变换程序包

Clenshaw-Curtis-Quadrature (Numerical Automatic Integrator) Package

files
intcc1.c : Quadrature Package in C    - Easy Version
intcc1.f : Quadrature Package in Fortran - Easy Version
intcc1t.c : Test Program of "intcc1.c"
intcc1t.f : Test Program of "intcc1.f"
intcc1.doc  : Document of "intcc1.*" (Japanese)
intcc2.c : Quadrature Package in C    - Fast Version
intcc2.f : Quadrature Package in Fortran - Fast Version
intcc2t.c : Test Program of "intcc2.c"
intcc2t.f : Test Program of "intcc2.f"
intcc2.doc  : Document of "intcc2.*" (Japanese)
chebexp.c : Chebyshev Series Expansion Package in C
chebexp.f : Chebyshev Series Expansion Package in Fortran
chebexpt.c  : Test Program of "chebexp.c"
chebexpt.f  : Test Program of "chebexp.f"
chebexp.doc : Document of "chebexp.*" (Japanese)
fft2f.c    : FFT Package in C    - Easy Version
fft2f.f    : FFT Package in Fortran - Easy Version

routines in the package
intcc : integrator of f(x) over [a,b].
chebexp  : function f(x) -> Chebyshev series
chebeval : Chebyshev series -> evaluation of the f(x)

usage
see block comments in the package file

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