Signals and Systems

Signals and Systems - Example of use of SMath for signals and systems analysis - Messages

#41 Posted: 9/24/2018 12:11:12 AM
Jean Giraud

Jean Giraud

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Hi, this is a snippet for numerical inverse Laplace transform. You can find time response of a system expressed in F(s) form.



That one was well covered, two last remarks:
1. That Smath does not trig example [1], rather in terms of exp(,)
OK, unfamiliar ... but much faster as it involves only one numerical approximation.
Whatever: it's the Maple business, from which Smath depends upon.
2. last visit [red/cyan[ is sometimes of importance as demonstrated.

InvLaplace2 Otherwise.sm (49 KiB) downloaded 78 time(s).


#42 Posted: 9/24/2018 10:21:12 AM
Jean Giraud

Jean Giraud

983 likes in 6866 posts.

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Wrote

That one was well covered



... when you deal with Laplace stuff, open your school book,
that will help setup Laplace Algebra appropriately, like this:

LaplaceAlgebra.PNG
#43 Posted: 3/20/2019 7:48:00 AM
Alvaro Diaz Falconi

Alvaro Diaz Falconi

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Hi. Improved version, works faster. Coefficients for the inversion are precalculated outside the inverter caller and avoiding vectorization for more compatibility of the inverter.

InvLaplace3.sm (98 KiB) downloaded 77 time(s).

Best regards.
Alvaro.

#44 Posted: 3/20/2019 2:01:50 PM
Jean Giraud

Jean Giraud

983 likes in 6866 posts.

Group: User

Wrote

Improved version, works faster.


Thanks Alvaro,
Any real use for this old style inverser,
vs Maple export c/w parameters that works much faster.
Saludos ... Jean

LaplaceExport.PNG

Laplace Maple Parametric Export.sm (15 KiB) downloaded 74 time(s).
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