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[Octave-bug-tracker] [bug #45423] symbolic package fails to construct ma
From: |
anonymous |
Subject: |
[Octave-bug-tracker] [bug #45423] symbolic package fails to construct matrices |
Date: |
Sat, 27 Jun 2015 10:52:05 +0000 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Firefox/38.0 Iceweasel/38.0.1 |
URL:
<http://savannah.gnu.org/bugs/?45423>
Summary: symbolic package fails to construct matrices
Project: GNU Octave
Submitted by: None
Submitted on: Sat 27 Jun 2015 10:52:04 AM UTC
Category: Octave Forge Package
Severity: 3 - Normal
Priority: 5 - Normal
Item Group: None
Status: None
Assigned to: None
Originator Name: Rock Storm
Originator Email: address@hidden
Open/Closed: Open
Discussion Lock: Any
Release: 3.8.2
Operating System: GNU/Linux
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Details:
I am using octave forge package "symbolic", and it basically fails when
constructing multiple-rows matrices that combine real numbers and symbolic
variables.
Package Name | Version | Installation directory
--------------+---------+-----------------------
symbolic *| 2.2.1 | /home/rock/octave/symbolic-2.2.1
Simple example of the error:
syms a
A = [1, 2; a, 4]
This code produces the following error:
error: octave_base_value::map_value(): wrong type argument 'scalar'
error: octave_base_value::parent_class_name_list(): wrong type argument
'scalar'
Without any knowledge of the internals of this package this error seems
somehow related to this other filed bug #42152
The workaround suggested at https://github.com/cbm755/octsympy/issues/8 also
produces an error:
octave:4> B = [[1 2];[a 4]]
error: class cannot be indexed with {
error: evaluating argument list element number 2
error: called from:
error: /home/rock/octave/symbolic-2.2.1/@sym/horzcat.m at line 51, column
11
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