#16813: symbolic Legendre / associated Legendre functions / polynomials
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Reporter: rws | Owner:
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-6.6
Component: symbolics | Resolution:
Keywords: | Merged in:
Authors: Ralf Stephan, | Reviewers:
Stefan Reiterer | Work issues:
Report Upstream: N/A | Commit:
Branch: | 9df78de81e0c307a1181a6ad4453bc56a93870b2
u/rws/symbolic_legendre___associated_legendre_functions___polynomials|
Stopgaps:
Dependencies: |
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Comment (by mmezzarobba):
A funny one:
{{{
sage: a = legendre_Q(0, 1/2)
sage: a.n()
0.549306144334055
sage: maple(a).evalf()
.5493061443-1.570796327*I
}}}
I think the issue is that Maple uses non-standard branch cuts for the
Legendre functions, so that the conversion to Maple is not correct.
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Ticket URL: <http://trac.sagemath.org/ticket/16813#comment:60>
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