lør, 21 03 2009 kl. 20:29 +0100, skrev Carlo de Falco:
> either this is a bug or it changed in more recent versions of matlab?
Either way, NaN is a really weird return value. How about changing the
function into
function y = heaviside (x, zero_value = 0.5)
if (nargin < 1)
print_usage ();
endif
y = cast (x > 0, class (x));
y (x == 0) = zero_value;
endfunction
? Then it'll behave sensible by default, and people that really want
NaN's can still get it.
Søren
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