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view general/numerical/scalar/slog.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 y=slog(x)
% slog - safe log, x<=0 => slog(x)=0
%
% slog :: real -> real.

	x(x<=0)=1;
	y=log(x);