CUMSIM: "CUMulative SIMpson" integral
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CUMSIM integrates sampled vectors or matrices y as functions of vector x, not necessarily uniform. Parabolic interpolation is made by PARFIL.
Contents of CUMSIM.zip
CUMSIM
CUMSPLINE
COMPCUM
CUMSPLINE: similar to CUMSIM, but interpolation is made by interp1(x,y,X,'spline'), where X=parfil(x,x);
COMPCUM: compares results of
CUMSIM,
CUMSIMPSON (cf. FEX) and
CUMSPLINE,
integrating sin(x) with randomly generated x.
Repetitive call of COMPCUM generates different versions of the screenshot above.
As a rule, CUMSPLINE wins, but if the data are slightly noisy, CUMSIM can win (cf. PARFIL).
引用
Vassili Pastushenko (2024). CUMSIM: "CUMulative SIMpson" integral (https://www.mathworks.com/matlabcentral/fileexchange/10236-cumsim-cumulative-simpson-integral), MATLAB Central File Exchange. 取得済み .
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