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view general/numerical/matrix/qforma.m @ 19:1eb0ea29ec40

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author samer
date Thu, 17 Jan 2013 13:32:19 +0000
parents db7f4afd27c5
children
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function z=qforma(A,u), z=sum(u.*(A*u));
% qforma - Quadratic form (array version) qforma(A,x)=diag(x'*A*x)
%
% qforma :: [[N,N]], [[N,T]] -> [[1,T]].