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Inversion of the Laplace Transform Using the Gaver-Stehfest Algorithm

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Stehfest [1] derived an algorithm for the numerical inversion of Laplace transforms. This Demonstration applies this algorithm to determine the inverse Laplace transforms of four test functions . The inverse functions and corresponding test functions are the following:

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1. with ,

2. with , where is Euler's constant,

3. with ,

4. with .

You can vary the parameters and . The blue curve shows the exact inverse and the red dots, the numerically calculated data using the Gaver–Stehfest algorithm.

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Contributed by: Housam Binous (September 2012)
Open content licensed under CC BY-NC-SA

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[1] H. Stehfest, "Algorithm 368: Numerical Inversion of Laplace Transform," Communications of the ACM, 13(1), 1970 pp. 47–49. doi: 10.1145/361953.361969.

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