#10923: Bad sign in integral()
------------------------+---------------------------------------------------
Reporter: tmonteil | Owner: burcin
Type: defect | Status: new
Priority: major | Milestone: sage-4.7
Component: calculus | Keywords: integral
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
------------------------+---------------------------------------------------
Comment(by kcrisman):
This is probably a bug in Maxima.
{{{
sage: integral(e^(-1/x^2),x,0,1)
-1/2*gamma(-1/2, 1)
sage: integral(e^(-1/x^2),x,0,1).n()
-0.0890738558907803
sage: n(1/2*gamma(-1/2,1))
0.0890738558907803
sage: numerical_integral(e^(-1/x^2),0,1)
(0.08907385589078036, 1.4474177932169952e-15)
}}}
So probably a minus sign got in there somehow.
This is now Maxima bug 3211937.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10923#comment:1>
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 post to this group, send email to [email protected].
To unsubscribe from this group, send email to
[email protected].
For more options, visit this group at
http://groups.google.com/group/sage-trac?hl=en.
