Simplifying output involving symbolic variables

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Aleem Andrew
Aleem Andrew 2021-1-7
评论： Star Strider 2021-1-7
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 2021-1-7
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:
.

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