#7099: serious incomplete gamma function precision bugs
-----------------------+----------------------------------------------------
Reporter: was | Owner: jkantor
Type: defect | Status: new
Priority: major | Milestone: sage-4.1.3
Component: numerical | Keywords:
Reviewer: | Author:
Merged: |
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{{{
sage: C = ComplexField(1000)
sage: C(2+I).gamma_inc(C(3+I))
0.1215156446645086956511068454478419198494520969688892364501953125000000\
000000000000000000000000000000000000000000000000000000000000000000000000\
000000000000000000000000000000000000000000000000000000000000000000000000\
000000000000000000000000000000000000000000000000000000000000000000000000\
00000000000000 +
0.1015339090798260332775427433604775728781532961875200271606445312500000\
000000000000000000000000000000000000000000000000000000000000000000000000\
000000000000000000000000000000000000000000000000000000000000000000000000\
000000000000000000000000000000000000000000000000000000000000000000000000\
00000000000000*I
}}}
What's with all the zeros? Same bad behavior for higher precision and
any other random input. This is undoubtedly the typical mistake of not
setting the pari precision correctly, etc., etc.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/7099>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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