Simplifying output involving symbolic variables

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Aleem Andrew
Aleem Andrew 2021년 1월 7일
댓글: Star Strider 2021년 1월 7일
The eigenvalue and eigenvector expressions generated by the following code are expressions that are not fully simplified. Can someone please explain how they can be further simplified?
syms m k g l wp ws
mm = [m 0; 0 m];
kms = [ws^2+wp^2 -wp^2; -wp^2 wp^2]
[evec,eval] = eig(kms)

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Star Strider
Star Strider 2021년 1월 7일
Try this:
evec = simplify(evec, 'Steps',500)
eval = simplify(eval, 'Steps',500)
producing:
evec =
[((4*wp^4 + ws^4)^(1/2) - ws^2)/(2*wp^2), -((4*wp^4 + ws^4)^(1/2) + ws^2)/(2*wp^2)]
[ 1, 1]
eval =
[wp^2 - (4*wp^4 + ws^4)^(1/2)/2 + ws^2/2, 0]
[ 0, (4*wp^4 + ws^4)^(1/2)/2 + wp^2 + ws^2/2]
or:
.
  댓글 수: 2
Aleem Andrew
Aleem Andrew 2021년 1월 7일
Thank you for your help
Star Strider
Star Strider 2021년 1월 7일
As always, my pleasure!

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