From: <HIDDEN>
Newsgroups: comp.soft-sys.matlab
Subject: Numerical Laplace transform
Date: Mon, 1 Apr 2013 19:30:14 +0000 (UTC)
Organization: The MathWorks, Inc.
Lines: 4
Message-ID: <kjcn86$hue$>
Reply-To: <HIDDEN>
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 8bit
X-Trace: 1364844614 18382 (1 Apr 2013 19:30:14 GMT)
NNTP-Posting-Date: Mon, 1 Apr 2013 19:30:14 +0000 (UTC)
X-Newsreader: MATLAB Central Newsreader 2629629
Xref: comp.soft-sys.matlab:792436

let's say we have a vector of y-values belonging to some x values. So y is some function of x. We don't have an analytic/symbolic expression for this function and are not interested in that either. Is there a (fast) method to Laplace transform this y-vector numerically like DFT/FFT with Fourier transform? I know there is a method in the matlab symbolic toolbox but suppose we don't know the explicit function (and do not want to interpolate it somehow).