summaryrefslogtreecommitdiffstats
path: root/fft.txi
diff options
context:
space:
mode:
authorThomas Bushnell, BSG <tb@debian.org>2006-10-23 23:55:08 -0700
committerBryan Newbold <bnewbold@robocracy.org>2017-02-20 00:05:37 -0800
commit97fc07b2d8896b869db55827900f24e6528a9bd6 (patch)
tree262ed5c19ad83dd59aac33d2e04ace4fbd94bd3b /fft.txi
parent810b08c931e958fdaa6971b2ce8c5e578130d652 (diff)
parent5bea21e81ed516440e34e480f2c33ca41aa8c597 (diff)
downloadslib-97fc07b2d8896b869db55827900f24e6528a9bd6.tar.gz
slib-97fc07b2d8896b869db55827900f24e6528a9bd6.zip
Import Debian changes 3a4-1debian/3a4-1
slib (3a4-1) unstable; urgency=low * New upstream release. * slib.texi (Library Catalogs): Repeat change from 3a3-3. * Makefile: Repeat $(htmldir)slib_toc.html changes from 3a2-1.
Diffstat (limited to 'fft.txi')
-rw-r--r--fft.txi34
1 files changed, 0 insertions, 34 deletions
diff --git a/fft.txi b/fft.txi
deleted file mode 100644
index 80c19e9..0000000
--- a/fft.txi
+++ /dev/null
@@ -1,34 +0,0 @@
-@code{(require 'fft)}
-@ftindex fft
-
-
-@defun fft array
-
-@var{array} is an array of @code{(expt 2 n)} numbers. @code{fft}
-returns an array of complex numbers comprising the
-@dfn{Discrete Fourier Transform} of @var{array}.
-@cindex Discrete Fourier Transform
-@end defun
-
-
-@defun fft-1 array
-
-@code{fft-1} returns an array of complex numbers comprising the
-inverse Discrete Fourier Transform of @var{array}.
-@end defun
-
-@noindent
-@code{(fft-1 (fft @var{array}))} will return an array of values close to
-@var{array}.
-
-@example
-(fft '#(1 0+i -1 0-i 1 0+i -1 0-i)) @result{}
-
-#(0.0 0.0 0.0+628.0783185208527e-18i 0.0
- 0.0 0.0 8.0-628.0783185208527e-18i 0.0)
-
-(fft-1 '#(0 0 0 0 0 0 8 0)) @result{}
-
-#(1.0 -61.23031769111886e-18+1.0i -1.0 61.23031769111886e-18-1.0i
- 1.0 -61.23031769111886e-18+1.0i -1.0 61.23031769111886e-18-1.0i)
-@end example