[Octave-cvsupdate] SF.net SVN: octave:[10385] trunk/octave-forge/main/signal/inst/ blackmanharris.m

[<mtm...@us...>]

Revision: 10385
          http://octave.svn.sourceforge.net/octave/?rev=10385&view=rev
Author:   mtmiller
Date:     2012-05-09 01:25:06 +0000 (Wed, 09 May 2012)
Log Message:
-----------
blackmanharris: fix window symmetry

Submitted by Mike Gross <mi...@ap...>, resubmitted by Daniel Sebald
<dan...@ie...>.  Closes artifact #3524658

Modified Paths:
--------------
    trunk/octave-forge/main/signal/inst/blackmanharris.m

Modified: trunk/octave-forge/main/signal/inst/blackmanharris.m
===================================================================
--- trunk/octave-forge/main/signal/inst/blackmanharris.m	2012-05-08 19:55:06 UTC (rev 10384)
+++ trunk/octave-forge/main/signal/inst/blackmanharris.m	2012-05-09 01:25:06 UTC (rev 10385)
@@ -31,6 +31,6 @@
   a1 = 0.48829;
   a2 = 0.14128;
   a3 = 0.01168;
-  n = -ceil(N/2):N/2;
-  w = a0 + a1.*cos(2.*pi.*n./N) + a2.*cos(4.*pi.*n./N) + a3.*cos(6.*pi.*n./N);
+  n = 0:N;
+  w = a0 - a1.*cos(2.*pi.*n./N) + a2.*cos(4.*pi.*n./N) - a3.*cos(6.*pi.*n./N);
 endfunction

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