Mercurial > octave-nkf
annotate libcruft/fftpack/cfftb.f @ 7789:82be108cc558
First attempt at single precision tyeps
* * *
corrections to qrupdate single precision routines
* * *
prefer demotion to single over promotion to double
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Add single precision support to log2 function
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Trivial PROJECT file update
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Cache optimized hermitian/transpose methods
* * *
Add tests for tranpose/hermitian and ChangeLog entry for new transpose code
author | David Bateman <dbateman@free.fr> |
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date | Sun, 27 Apr 2008 22:34:17 +0200 |
parents | d20a2f261306 |
children |
rev | line source |
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2329 | 1 subroutine cfftb (n,c,wsave) |
7575
d20a2f261306
use * instead of 1 for assumed-size fortran arrays
John W. Eaton <jwe@octave.org>
parents:
2329
diff
changeset
|
2 dimension c(*) ,wsave(*) |
2329 | 3 if (n .eq. 1) return |
4 iw1 = n+n+1 | |
5 iw2 = iw1+n+n | |
6 call cfftb1 (n,c,wsave,wsave(iw1),wsave(iw2)) | |
7 return | |
8 end |