#17953: inconsistency in returned type of symbolic function result
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Reporter: rws | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-6.6
Component: symbolics | Keywords:
Merged in: | Authors:
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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It is generally preferred that the returned result type matches the
argument type when calling a builtin function. For example this is as
expected:
{{{
sage: factorial(8).parent()
Integer Ring
sage: factorial(SR(8)).parent()
Symbolic Ring
sage: exp(0).parent()
Integer Ring
sage: exp(SR(0)).parent()
Symbolic Ring
}}}
but this is not:
{{{
sage: lambert_w(SR(0)).parent()
Integer Ring
}}}
This ticket serves as a catch-all for such unexpected types.
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Ticket URL: <http://trac.sagemath.org/ticket/17953>
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