update complexDivision in ffttools.hpp #13

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yaochx wants to merge 1 commit into joaofaro:master from yaochx:master

yaochx commented Sep 1, 2017 •

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the complex division formular is
(a + b * i) / (c + d * i) = (b * c - a * d) / (c * c + d * d)


          update complexDivision in ffttools.hpp

6ffab0b

githublet commented Apr 17, 2018

(a + b * i) / (c + d * i) =(ac+bd)/(cc+dd)+(b * c - a * d)i / (c * c + d * d)

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