Re: FFT module thoughts, was Re: [eigen] Eigen 3.0.5 Could NOT find FFTW |

[ Thread Index | Date Index | More lists.tuxfamily.org/eigen Archives ]

*To*: eigen@xxxxxxxxxxxxxxxxxxx*Subject*: Re: FFT module thoughts, was Re: [eigen] Eigen 3.0.5 Could NOT find FFTW*From*: Mark Borgerding <mark@xxxxxxxxxxxxxx>*Date*: Thu, 05 Apr 2012 09:57:06 -0400

1. The exp() function, as others have mentioned. 2. The calculation of pi, as done via acos(-1)

(Let me know if this is not clear and I can provide an example.) In other words, if we had a root-finding function template<typename Scalar>

On 04/05/2012 07:04 AM, Pavel Holoborodko wrote:

Yes, I have my own multiple precision complex exp() in std space, as well as other math. functions. Seems to work fine in all other contexts (including Eigen itself), but doesn't help with FFT :( On Apr 5, 2012, at 19:52, "Björn Piltz"<bjornpiltz@xxxxxxxxxxxxxx> wrote:I think std::exp() might be a candidate. Try adding namespace std { std::complex<Real> exp(const std::complex<Real>&); } to your file to see if it's the culprit. Björn

**Follow-Ups**:**Re: FFT module thoughts, was Re: [eigen] Eigen 3.0.5 Could NOT find FFTW***From:*Mark Borgerding

**Re: FFT module thoughts, was Re: [eigen] Eigen 3.0.5 Could NOT find FFTW***From:*Pavel Holoborodko

**References**:**Re: FFT module thoughts, was Re: [eigen] Eigen 3.0.5 Could NOT find FFTW***From:*Pavel Holoborodko

**Re: FFT module thoughts, was Re: [eigen] Eigen 3.0.5 Could NOT find FFTW***From:*Márton Danóczy

**Re: FFT module thoughts, was Re: [eigen] Eigen 3.0.5 Could NOT find FFTW***From:*Pavel Holoborodko

**Re: FFT module thoughts, was Re: [eigen] Eigen 3.0.5 Could NOT find FFTW***From:*Márton Danóczy

**Re: FFT module thoughts, was Re: [eigen] Eigen 3.0.5 Could NOT find FFTW***From:*Björn Piltz

**Re: FFT module thoughts, was Re: [eigen] Eigen 3.0.5 Could NOT find FFTW***From:*Pavel Holoborodko

**Messages sorted by:**[ date | thread ]- Prev by Date:
**Re: FFT module thoughts, was Re: [eigen] Eigen 3.0.5 Could NOT find FFTW** - Next by Date:
**Re: FFT module thoughts, was Re: [eigen] Eigen 3.0.5 Could NOT find FFTW** - Previous by thread:
**Re: FFT module thoughts, was Re: [eigen] Eigen 3.0.5 Could NOT find FFTW** - Next by thread:
**Re: FFT module thoughts, was Re: [eigen] Eigen 3.0.5 Could NOT find FFTW**

Mail converted by MHonArc 2.6.19+ | http://listengine.tuxfamily.org/ |