Though the builtin function is sufficiently fast for practical purposes, this particular implementation is faster by a factor of 100 to 300 across a range of 6 to 13 digits. This is intended to be an interesting function rather than an attempt to replace anything. If a consistently faster method than this can be shown, I'll happily adapt this in the spirit of competition.
Gatech AE (2020). gcdFast (https://www.mathworks.com/matlabcentral/fileexchange/79209-gcdfast), MATLAB Central File Exchange. Retrieved .
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