#18713: cannot feed cached function to Matrix
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Reporter: rws | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-6.8
Component: linear algebra | Keywords:
Merged in: | Authors:
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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From http://ask.sagemath.org/question/27111/why-can-matrix-not-use-cached-
functions/
{{{
sage: @cached_function
....: def L(n,k):
....: if n==k: return 1
....: if k<0 or k>n: return 0
....: return L(n-1,k-1)+(n+k-1)*L(n-1,k)
....:
sage: matrix(ZZ, 8, L)
...
ValueError: Invalid matrix constructor. Type matrix? for help
}}}
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Ticket URL: <http://trac.sagemath.org/ticket/18713>
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