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From: Chris on 19 Jul 2010 23:42
My understanding is that MATLAB utilizes the popular FFTW c-library to do its FFTs. In the FFTW library is a function for computing only the positive half of the FFT when the input is purely real. Does anyone know if there is a way to access this in MATLAB or not?
From: kk KKsingh on 20 Jul 2010 02:17
"Chris " <news(a)comcast.com> wrote in message <i235ud$iof$1(a)fred.mathworks.com>...
> My understanding is that MATLAB utilizes the popular FFTW c-library to do its FFTs. In the FFTW library is a function for computing only the positive half of the FFT when the input is purely real. Does anyone know if there is a way to access this in MATLAB or not?

No ! You cant access FFTW Seprately ! have to call from FFT .....if you want to use FFTW seprately make it in form of mex file
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