#15487: better error message when doing symbolic things with matrices
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Reporter: kcrisman | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-5.13
Component: linear algebra | Keywords:
Merged in: | Authors:
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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[https://groups.google.com/forum/#!msg/sage-
support/lpqzCOja6kg/lWVdmInFa8gJ This sage-support post] points out that
our error message isn't very helpful when trying to use matrices in
symbolic expressions.
{{{
sage: P=x^2
sage: P(x=4)
16
sage: M=matrix([(1, -3, -1),(0, 1, 1),(-1, 2, 1)])
sage: P(x=M)
<boom that doesn't tell you do use polynomial rings>
}}}
Let's improve this. If we can even get this to work properly (no boom)
that would be even better.
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Ticket URL: <http://trac.sagemath.org/ticket/15487>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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