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@goldbattle
Created January 19, 2022 18:02
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D = sym('D',[3,3])
d = sym('d',[3,1])
lambda = sym('lambda');
g = sym('g');
assume(D,'real')
assume(d,'real')
assume(lambda,'real')
assume(g,'real')
expression = det((D - lambda*eye(3,3))^2 - (1/g^2)*(d*d'));
collected = collect(expression, lambda)
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