factorial.m

fading 在无线中的应用

function p = factorial(n)
%FACTORIAL Factorial function.
% Does the same as the matlab factorial function. This one is added for those
% who do not have it in their matlab installation.  

if (length(n)~=1) | (fix(n) ~= n) | (n < 0)
  error('N must be a positive integer'); 
end

p = prod(1:n);