Download Gaver-Stehfest algorithm for inverse Laplace transform

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% ilt=gavsteh(funname,t,L)
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% funname The name of the function to be transformed.
% t The transform argument (usually a snapshot of time).
% ilt The value of the inverse transform
% L number of coefficient ---> depends on computer word length used
% (examples: L=8, 10, 12, 14, 16, so on..)
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% Numerical Inverse Laplace Transform using Gaver-Stehfest method
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%Refferences:
% 1. Villinger, H., 1985, Solving cylindrical geothermal problems using
% Gaver-Stehfest inverse Laplace transform, Geophysics, vol. 50 no. 10 p.
% 1581-1587
% 2. Stehfest, H., 1970, Algorithm 368: Numerical inversion of Laplace transform,
% Communication of the ACM, vol. 13 no. 1 p. 47-49
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% Simple (and yet rush) examples included in functions fun1 and fun2 with
% their comparisons to the exact value (use testgs.m to run the examples)