?? logfactorial.m
字號:
function p = LogFactorial(n)
%LOGFACTORIAL Calculates the Natural log of the factorial of n
% NL = LogFactorial(n)
%
%(C) David Corney (2000) D.Corney@cs.ucl.ac.uk
[R,C]=size(n);
if R==1 & C==1
p=sum(log(1:n));
return
end
if min(R,C)==1
for i = 1:length(n)
p(i)=sum(log(1:n(i)));
end
return
end
error('LogFactorial requires scalar or vector input!')
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