can you help me to calculate the number of multiplication and operation ,we used flops,
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function i = pdga()
n=46;
factors = factor(n);
if length(factors) == 1
i = 1;
else
i = prod(factors(2:end));
end
end
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Accepted Answer
Walter Roberson
on 16 Nov 2013
Sorry, no, on modern systems is not not possible to meaningfully calculate FLOPS.
Also, the method that factor() uses to determine the factors is not documented. You could peak at the source code for MATLAB's factor(), but keep in mind that that code is one possible implementation and not necessarily the most efficient implementation. It is not known what the most efficient possible factorization is; see http://en.wikipedia.org/wiki/Integer_factorization#Difficulty_and_complexity
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