function w = hann(n)% function w = hann(n)% A Hann window of length n. Does not smear tones located exactly in a bin.warning('You are using the obsolete hann() function from the Delta-Sigma Toolbox.');warning('Remove this file if you do not need to maintain backwards compatibility');warning('and please use ds_hann() instead.');w = .5*(1 - cos(2*pi*(0:n-1)/n) );