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646 (e263d8a21543) added further path and more save "camirversion.m"

function v = wrap(u,N)
% WRAP Wrap a vector of indices around a torus.
% v = wrap(u,N)
%
% e.g., wrap([-1 0 1 2 3 4], 3)   =   2 3 1 2 3 1

v = mod(u-1,N)+1;