Hi All,
Firstly, let me thank you for this wonderful
effort. I have been using Sage for last six months
almost exclusively and I must say that I am really
impressed by Sage.
While computing the following inverse Laplace
transform, I get a mysterious error.
--------------------------------------
var('t s')
F(s) = 1/((s+1)(s+2))
inverse_laplace(F(s),s,t)
--
e^(-(3*t))
-------------------------------------
Notice that I made a typing error while writing
the product of (s+1) and (s+2) in the denominator.
Now, if try
--------------------------------------
F(s) = 1/((s+1)*(s+2)) ;
inverse_laplace(F(s),s,t)
---
e^(-t) - e^(-(2*t))
--------------------------------------
The second answer is the correct answer while
the first answer is not (at least for the
intended inverse Laplace transform).
Shouldn't Sage raise an error in the first case instead
of giving a wrong answer?
I am using Sage (ver. 3.3 on Kubuntu 8.04) Notebook
interface.
Thanks,
Golam
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