[Octave-cvsupdate] SF.net SVN: octave:[8758] trunk/octave-forge/main/control

[<par...@us...>]

Revision: 8758
          http://octave.svn.sourceforge.net/octave/?rev=8758&view=rev
Author:   paramaniac
Date:     2011-10-17 04:08:56 +0000 (Mon, 17 Oct 2011)
Log Message:
-----------
control: update news, add todo to rlocus

Modified Paths:
--------------
    trunk/octave-forge/main/control/doc/NEWS
    trunk/octave-forge/main/control/inst/rlocus.m

Modified: trunk/octave-forge/main/control/doc/NEWS
===================================================================
--- trunk/octave-forge/main/control/doc/NEWS	2011-10-16 20:55:49 UTC (rev 8757)
+++ trunk/octave-forge/main/control/doc/NEWS	2011-10-17 04:08:56 UTC (rev 8758)
@@ -13,8 +13,21 @@
 
 ** tf
    -- MIMO support for descriptor state-space to transfer function conversion.
+      Usage: tf_sys = tf (dss_sys)
+      
+** rlocus
+   -- Clarify usage statement in help string.
+   -- Check whether system is SISO.
 
+** MDSSystem
+   -- Display bode plots of controllers instead of singular value plots of the
+      closed loops.
 
+** hsvd
+   -- Added option "alpha" to specify the alpha-stability boundary for the
+      eigenvalues of the state dynamics matrix A.
+
+
 ===============================================================================
 control-2.2.0   Release Date: 2011-09-26   Release Manager: Lukas Reichlin
 ===============================================================================
@@ -28,6 +41,8 @@
       an internal conversion to a minimal state-space representation.  With the
       current tf2ss and ss2tf conversions, only proper transfer function are
       supported.  This limitation does not exist for SISO transfer functions.
+   -- Fixed a cellfun statement that caused problems on MinGW32 builds and
+      possibly some others.  (Reported by Bernhard Weller)
 
 ** @lti/pole, @lti/zero
    -- Computation of poles and zeros of MIMO transfer functions is now possible

Modified: trunk/octave-forge/main/control/inst/rlocus.m
===================================================================
--- trunk/octave-forge/main/control/inst/rlocus.m	2011-10-16 20:55:49 UTC (rev 8757)
+++ trunk/octave-forge/main/control/inst/rlocus.m	2011-10-17 04:08:56 UTC (rev 8758)
@@ -81,6 +81,7 @@
   lnum = length (num);
   lden = length (den);
   ## equalize length of num, den polynomials
+  ## TODO: handle case lnum > lden (non-proper models)
   if (lden < 2)
     error ("rlocus: system has no poles");
   elseif (lnum < lden)

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