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Re: Efficiently computing large numbers of vector norms
Posted:
Nov 8, 2012 1:11 AM
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I believe that instead of taking absolute values of complex numbers and squaring, it is faster to multiply by the conjugate.
Instead of this:
M = something;
Z = sum(abs(M).^2),2)
Do this:
M = something;
Z = sum(M.*conj(M),2)
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