#92 Inverse Laplace of delayed unit step missing?

open
nobody
None
5
2012-11-18
2011-04-19
Andrej Vodopivec
No

Copied from http://sourceforge.net/tracker/?func=detail&aid=3288140&group_id=126731&atid=707631

Entering expression:
U: laplace(unit_step(t-2),t,s);
Gives nicely results:
%e^(-2*s)/s

However, inverse Laplace:
u: ilt(exp(-2*s)/s,s,t);
Doesn\'t give back the delayed unit step.

Compared to Wolfram alpha and Matlab Symbolic Toolbox this is a drawback for wxMaxima.

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