On Fri, Jun 27, 2008 at 3:06 PM, David Joyner [EMAIL PROTECTED] wrote:
I'm not sure if what you report is a bug in SAGE. SAGE calls Maxima. If Maxima
refuses to integrate that integral (and I think it *should* but maybe
the algebra
is too complicated for it) then SAGE won't do it either.
If
Do I need to do something further to make sure that this gets entered
as a bug, or do the developers read this list regularly? Thanks.
On Jun 22, 8:23 am, Roger [EMAIL PROTECTED] wrote:
Huh.
Whomever looks at this issue should note that there are now two
distinct problems raised in this
I'm not sure if what you report is a bug in SAGE. SAGE calls Maxima. If Maxima
refuses to integrate that integral (and I think it *should* but maybe
the algebra
is too complicated for it) then SAGE won't do it either.
If you want a numerical value then use n(integrate...). That seems to be
Huh.
Whomever looks at this issue should note that there are now two
distinct problems raised in this thread: the original issue regarding
why f.integral(9,16) below remains unevaluated, and tDavid's question
of why the two answers are different.
On Jun 21, 9:01 am, David Joyner [EMAIL
Unless 24.9... = -24.9..., there seems to be a bug:
sage: f = sqrt(25-x)*sqrt(1+1/(4*(25-x)))
sage: f.integral(x,9,16)
integrate(sqrt(1/(4*(25 - x)) + 1)*sqrt(25 - x), x, 9, 16)
sage: f.nintegral(x,9,16)
(24.9153783348643, 2.7661626694613149e-13, 21, 0)
sage: g = f.simplify_radical()
sage:
