MathGroup Archive 1999

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Re: Basic Laplace Transforms

Don Metcalf [dmetcalf at] wrote:

> I am fairly new to Mathematica and can't understand why the program won't
> evaluate simple laplace transforms.  I am entering in the example exactly
> from the help file and still it doesn't work.  It just outputs what I have
> typed in.  Can someone help.  If I am doing something wrong, the user
> interface sure is not user friendly.

It is, provided you do what you're supposed to. You must first load the
LaplaceTransform AddOn :


LaplaceTransform[Sin[t], t, s]

1/(1 + s^2)

If you called LaplaceTransform before loading the AddOn (in the same
session), be sure to remove it before calling it again in order to avoid
shadowing problems:


Tomas Garza
Mexico City

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