Mercurial > hg > octave-nkf
diff doc/interpreter/signal.txi @ 9072:bd8e388043c4
Cleanup documentation for signal.texi, image.texi, audio.texi
| author | Rik <rdrider0-list@yahoo.com> |
|---|---|
| date | Wed, 01 Apr 2009 17:06:45 -0700 |
| parents | eb63fbe60fab |
| children | 757efa1d7e2a |
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--- a/doc/interpreter/signal.txi +++ b/doc/interpreter/signal.txi @@ -21,9 +21,9 @@ @chapter Signal Processing -This chapter describes the signal processing and fast fourier -transform functions available in Octave. Fast fourier transforms are -computed with the @sc{fftw} or @sc{Fftpack} libraries depending on how +This chapter describes the signal processing and fast Fourier +transform functions available in Octave. Fast Fourier transforms are +computed with the @sc{fftw} or @sc{fftpack} libraries depending on how Octave is built. @@ -32,15 +32,15 @@ @DOCSTRING(fft) -Octave uses the FFTW libraries to perform FFT computations. When Octave -starts up and initializes the FFTW libraries, they read a system wide +Octave uses the @sc{fftw} libraries to perform FFT computations. When Octave +starts up and initializes the @sc{fftw} libraries, they read a system wide file (on a Unix system, it is typically @file{/etc/fftw/wisdom}) that contains information useful to speed up FFT computations. This information is called the @emph{wisdom}. The system-wide file allows -wisdom to be shared between all applications using the FFTW libraries. +wisdom to be shared between all applications using the @sc{fftw} libraries. Use the @code{fftw} function to generate and save wisdom. Using the -utilities provided together with the FFTW libraries +utilities provided together with the @sc{fftw} libraries (@command{fftw-wisdom} on Unix systems), you can even add wisdom generated by Octave to the system-wide wisdom file.