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R2009a matlab code for laplace and inverse laplace

Asked by Lokman Abdullah on 27 Jun 2011

What is the matlab code to find laplace transform and inverse laplace of certain equation. I am using Matlab version R2009a. the matlab code availab in help file is for Matlab version R2011a. Please help.

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Lokman Abdullah

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1 Answer

Answer by Paulo Silva on 27 Jun 2011
Accepted answer

You need the Symbolic Math Toolbox™

Examples on how to use the laplace function:

syms t
f = t^4
laplace(f)
syms s
g = 1/sqrt(s)
laplace(g)
syms t a x
f = exp(-a*t)
laplace(f,x)

Examples on how to use ilaplace

syms s
f = 1/s^2
ilaplace(f)
syms a t
g = 1/(t-a)^2
ilaplace(g)
syms x u
syms a real
f = 1/(u^2-a^2)
simplify(ilaplace(f,x))

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Paulo Silva

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