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LaPlace transform, magnitude, poles.

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Kyle Langford
Kyle Langford 2022-4-16
评论： Star Strider 2022-4-16
I need some hep with this last step.
I am following a guide to try and info out of a laplace transform.
This is the code I have, and my attempt to get the highlighted solution.
This has everything I need I am just not sure how to get the final output. For example I don't know how MATLAB will always order the values. Like if -0.25 should be assigned to s or s^2.

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Star Strider
Star Strider 2022-4-16
Ran in:
I don’t recognise ‘poly2str’ and the only MATLAB function I can find that would be similar is poly2sym.
Taking a shortcut, try this —
syms F(s) s t
F(s) = (s^2+1) / (s^2*(s+2))
F(s) = 
F = partfrac(F)
F(s) = 
f(t) = ilaplace(F)
f(t) = 
f = vpa(f, 3)
f(t) = 
The partfrac function was introduced in R2015a.
.

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