From bug-octave-request at bevo dot che dot wisc dot edu Tue Dec  3 08:57:04 2002
Subject: odd order butterworth filters
From: Shaun Jackman <sjackman at shaw dot ca>
To: bug-octave at bevo dot che dot wisc dot edu
Date: Tue, 3 Dec 2002 03:33:43 -0600

The butter command doesn't support odd order filters.
	>> [b a] = butter( 1, 0.5);
	error: invalid matrix index = 1
	error: evaluating assignment expression near line 43, column 9
	error: evaluating if command near line 34, column 3
	error: called from `__zp2ssg2__' in file
	`/usr/share/octave/2.1.36/m/control/system/__zp2ssg2__.m'
	error: called from `zp2tf' in file
	`/usr/share/octave/2.1.36/m/control/system/zp2tf.m'
	error: called from `butter' in file
	`/usr/share/octave/2.1.36/m/signal/butter.m'

Thanks!
Shaun



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