#15118: ZeroDivisionError in MPF_pow not propagated in Cython mpmath
---------------------------+-----------------------------
Reporter: eviatarbach | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-5.12
Component: numerical | Keywords:
Merged in: | Authors:
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
---------------------------+-----------------------------
Currently, the following occurs:
{{{
sage: import mpmath
sage: mpmath.mpf(0)^(-2)
Exception ZeroDivisionError: ZeroDivisionError() in
'sage.libs.mpmath.ext_impl.MPF_pow' ignored
mpf('0.0')
}}}
This also causes problems in other functions (this should be a singularity
of the function):
{{{
sage: mpmath.zeta(2r,-4r)
Exception ZeroDivisionError: ZeroDivisionError() in
'sage.libs.mpmath.ext_impl.MPF_pow' ignored
mpf('3.0685451779593373')
}}}
This is because the `MPF_pow` Cython function does not declare an
exception value.
--
Ticket URL: <http://trac.sagemath.org/ticket/15118>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
--
You received this message because you are subscribed to the Google Groups
"sage-trac" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
Visit this group at http://groups.google.com/group/sage-trac.
For more options, visit https://groups.google.com/groups/opt_out.
