[Octave-bug-tracker] [bug #42082] Control package function "series" reports error

[Laurence Shaw]

URL:
  <http://savannah.gnu.org/bugs/?42082>

                 Summary: Control package function "series" reports error
                 Project: GNU Octave
            Submitted by: lrshaw
            Submitted on: Wed 09 Apr 2014 06:40:59 PM GMT
                Category: Octave Forge Package
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Matlab Compatibility
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 3.6.4
        Operating System: Microsoft Windows

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Details:

error: lti: mtimes: system dimensions incompatible: (1x1) * (4x2)
error: called from:
error:  
C:address@hidden
s.m at line 36, column 5
error:  
C:address@hidden
s.m at line 61, column 9


Num1= [1];den1=[1,1];lowpass=tf(Num1,den1)

octave-3.6.4.exe:16> lowpass

Transfer function 'lowpass' from input 'u1' to output ...

        1
 y1:  -----
      s + 1
sys= ss(A,B,C,D)

octave-3.6.4.exe:18> cascade=series(sys,lowpass)
error: lti: mtimes: system dimensions incompatible: (1x1) * (4x2)
error: called from:
error:  
C:address@hidden
s.m at line 36, column 5
error:  
C:address@hidden
s.m at line 61, column 9
octave-3.6.4.exe:18>

A =

  -0.08680   0.03908   0.00000  -1.00000
   0.00000   0.00000   1.00000   0.00000
  -4.41000   0.00000  -1.18100   0.33400
   2.14000   0.00000  -0.02040  -0.22800

octave-3.6.4.exe:12> B
B =

   0.00000   0.02220
   0.00000   0.00000
   2.11000   0.54900
  -0.06520  -1.11640

octave-3.6.4.exe:13> C
C =

Diagonal Matrix

   1   0   0   0
   0   1   0   0
   0   0   1   0
   0   0   0   1

octave-3.6.4.exe:14> D
D =

   0   0
   0   0
   0   0
   0   0





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File Attachments:


-------------------------------------------------------
Date: Wed 09 Apr 2014 06:40:59 PM GMT  Name: octave error.doc  Size: 24kB  
By: lrshaw
Multiple inputs should cause this Octave only situation
<http://savannah.gnu.org/bugs/download.php?file_id=31146>

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