Problem with Laplace transform [SOLVED]

11122016, 02:19 PM
(This post was last modified: 02022018 08:58 PM by JMB.)
Post: #1




Problem with Laplace transform [SOLVED]
The command laplace(SIN(t*pi/10)*(Heaviside(t)Heaviside(t10)),t,s) works correctly.
Now if instead of the number 10 we use a constant (a), and execute the commands assume(a>0) and laplace(SIN(t*pi/a)*(Heaviside(t)Heaviside(ta)),t,s) , the result is not correct. It should be the same as in the first image, substituting a for 10 in the numerator, and a^2 for 100 in the denominator. The program XCAS gives correct answers in both cases. 

11122016, 04:05 PM
Post: #2




RE: Problem with Laplace transform
The version of giac in the current firmware is older than in Xcas, a bug has certainly be fixed.


02022018, 08:58 PM
Post: #3




RE: Problem with Laplace transform [SOLVED]
Corrected in firmware 13333.
Thanks to the HP Prime Team! 

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