Hi all.
Is it a (known) bug ?
----------------------------------------------------------------------
| Sage Version 4.5.3, Release Date: 2010-09-04 |
| Type notebook() for the GUI, and license() for information. |
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sage: f(x)=sqrt(x)/( sqrt(4-x)-sqrt(4+x) )
sage: f.limit(x=0)
Infinity
sage: limit(f,x=0)
Infinity
sage: f(0.0001)
-199.999999983591
A computation by hand shows that the limit is actually -Infinity. Why
does Sage say Infinity ?
This looks like the bug [1], but the latter is said to be fixed in Sage
4.3.1 while I have Sage 4.5.3
[1] http://trac.sagemath.org/sage_trac/ticket/4142
Have a good afternoon
Laurent
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