Harald Schilly writes:
> this report came in from the "report a problem" link for 4.1.1.
>
> -
>
> Sage gives an incorrect value when calculating a definite integral
> analytically:
>
> sage: integrate(cos(x)^2 * (1 + sin(x)^2)^-3,x,0,pi/2)
> 21/64*pi*sqrt(2)
> sage: _.n
On 17 říj, 12:42, Harald Schilly wrote:
> On Oct 17, 8:18 am, "ma...@mendelu.cz" wrote:
>
> > I reported this as ID 2880886, ...
>
> Thanks. Out of curiosity, i tried this integral with sympy. This ends
> up to take minutes or longer. Should we report this as a bug, too?
>
> integrate(cos(x)^
On Oct 17, 8:18 am, "ma...@mendelu.cz" wrote:
> I reported this as ID 2880886, ...
Thanks. Out of curiosity, i tried this integral with sympy. This ends
up to take minutes or longer. Should we report this as a bug, too?
integrate(cos(x)^2 * (1 + sin(x)^2)^-3,x,0,pi/2, algorithm='sympy')
H
--~
>
> This is also present in the Maxima current CVS version. Someone may
> want to report this to the Maxima bug tracker - I cannot right now.
>
Old Maxima 5.18 has the same problem.
I reported this as ID 2880886, since the problem seems to be different
one than
https://sourceforge.net/tracker/
On Oct 16, 7:39 pm, Harald Schilly wrote:
> this report came in from the "report a problem" link for 4.1.1.
>
> -
>
> Sage gives an incorrect value when calculating a definite integral
> analytically:
>
> sage: integrate(cos(x)^2 * (1 + sin(x)^2)^-3,x,0,pi/2)
> 21/64*pi
