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view general/numerical/matrix/qform.m @ 61:eff6bddf82e3 tip

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Finally implemented perceptual brightness thing.
author samer
date Sun, 11 Oct 2015 10:20:42 +0100
parents db7f4afd27c5
children
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function z=qform(A,u), z=u'*A*u;
% qform - Quadratic form: qform(A,x)=x'*A*x
%
% qform :: [[N,N]], [[N,T]] -> [[T,T]].