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view general/numerical/scalar/hsphere_surfln.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 S=hsphere_surfln(N), S=log(2)+(N/2)*log(pi)-gammaln(N/2); end
% hsphere_surfln - log of surface area of unit hypersphere
%
% hsphere_surfln :: natural -> real.
%
% hsphere_surfln(N)=log(hsphere_surf(N))