#6423: Sage not always understanding i=sqrt(-1) - Maxima bug probably
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Reporter: drkirkby | Owner:
AlexGhitza
Type: defect | Status: new
Priority: major | Milestone:
sage-4.3.1
Component: calculus | Keywords:
Work_issues: | Author:
Upstream: Fixed upstream, in a later stable release. | Reviewer:
Merged: |
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Changes (by kcrisman):
* upstream: Fixed upstream, but not in a stable release. => Fixed
upstream, in a later stable release.
Comment:
Using Maxima 5.20.1 with Sage 4.3.alpha1:
{{{
sage: exp(-x*i).integral(x,0,1)
I*e^(-I) - I
}}}
So if that is mathematically correct, sounds like it's fixed. The
following link
[http://www.wolframalpha.com/input/?i=integrate+e%5E%28-x*I%29+from+0+to+1]
indicates it is, as well as just using the FTC. Now we just need the spkg
and to put a doctest here.
See #7748 for getting a symbolic incomplete gamma, which we would also
need regardless of that.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/6423#comment:6>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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