#11948: Fix numeric evaluation of error function
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Reporter: jdemeyer |
Owner: jdemeyer
Type: defect |
Status: closed
Priority: major |
Milestone: sage-4.8
Component: numerical |
Resolution: fixed
Keywords: erf erfc |
Work issues:
Report Upstream: N/A |
Reviewers: Karl-Dieter Crisman
Authors: Jeroen Demeyer |
Merged in: sage-4.8.alpha6
Dependencies: #11130, #11321, #11854, #11891, #11890, #11836, #11952 |
Stopgaps:
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Comment (by kcrisman):
And apparently even weirder, courtesy of Jeff Denny.
{{{
sage: erf(i*1.42)
1.00000000000000 + 4.03986343036907*I
sage: import mpmath
sage: mpmath.erf(i*1.42)
mpc(real='0.0', imag='3.8217653554366318')
}}}
I'm opening a ticket for this, even if it gets fixed by one of the logical
others (#1173 or #13050) because it is just mathematically wrong. This is
#13193; continue discussion there.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11948#comment:18>
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