#19799: numerical approximation of zeta involving symbolic constants fails
-------------------------+----------------------------
Reporter: behackl | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-7.0
Component: symbolics | Keywords:
Merged in: | Authors:
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
-------------------------+----------------------------
when evaluating `zeta(s)` numerically at arguments where symbolic
constants like `pi`, `sqrt(2)`, `log(2)` etc... are involved, it raises an
error (in contrast to `gamma(s)`):
{{{
sage: gamma(pi).n()
2.28803779534003
sage: zeta(pi).n()
Traceback (most recent call last):
...
TypeError: cannot evaluate symbolic expression numerically
}}}
or, similarly
{{{
sage: gamma(sqrt(2)).n()
0.886581428719259
sage: zeta(sqrt(2)).n()
Traceback (most recent call last):
...
TypeError: cannot evaluate symbolic expression numerically
}}}
and so on.
--
Ticket URL: <http://trac.sagemath.org/ticket/19799>
Sage <http://www.sagemath.org>
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