Re: [eigen] A complex FFT for Eigen |

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*To*: eigen@xxxxxxxxxxxxxxxxxxx*Subject*: Re: [eigen] A complex FFT for Eigen*From*: Matthias Pospiech <matthias.pospiech@xxxxxx>*Date*: Thu, 27 Nov 2008 16:43:07 +0100

Benoit Jacob schrieb:

Hi, Thank you for your interest and your code, it's at least interesting to read. Eigen is a linear algebra library, so FFT is beyond its basic scope, but we do have a couple of modules doing non-linear-algebra stuff (Eigen/Regression and Eigen/Geometry) so FFT is not ruled out at that level. I lack knowledge on FFT actually to make a decision whether or not we want it inside Eigen: - is it usual to restrict it to complex numbers and power-of-two fixed sizes ? Wouldn't it be desirable to allow reals, to allow any non-pow-of-2 size, to allow dynamic-size? If any is "yes" then we need it before inclusion in Eigen

Matthias ---

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**References**:**[eigen] A complex FFT for Eigen***From:*Tim Molteno

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