On 2018-10-02, kcrisman wrote:
> Please do. It's likely something related to
> https://trac.sagemath.org/ticket/21440 and
> https://trac.sagemath.org/wiki/symbolics#Integrationtickets where you can
> browse to your heart's content :-) For some reason the wrong branch seems
> to get chosen by
On Monday, October 1, 2018 at 4:55:14 PM UTC-4, Simon King wrote:
>
> Hi!
>
> I get the following with sage-8.4.beta5:
> sage: f(x) = cos(pi*x)
> sage: (f(x)*exp(-I*pi*x)).integral(x)(x=1/2) -
> (f(x)*exp(-I*pi*x)).integral(x)(x=-1/2)
> 1/2
> sage: (f(x)*exp(-I*pi*x)).integral(x,-1/
> integral(sqrt(1+cos(x)^2),x,0,pi)
> >
> > 0
>
> The bug appears to be tickled by the Maxima package abs_integrate.
> Without abs_integrate, integrate(sqrt(1 + cos(x)^2), x, 0, %pi) just
> returns a noun expression.
>
> > Zero is decidedly not correct. The problem is apparently here:
On 2017-10-26, david.guichard wrote:
> integral(sqrt(1+cos(x)^2),x,0,pi)
>
> 0
The bug appears to be tickled by the Maxima package abs_integrate.
Without abs_integrate, integrate(sqrt(1 + cos(x)^2), x, 0, %pi) just
returns a noun expression.
> Zero is decidedly not correct. The problem is a
On Tuesday, March 27, 2012 4:25:48 PM UTC-4, david.guichard wrote:
>
> I've tried this on my 4.6 sage and on 5.0 beta; the main sagenb.org is
> not returning calculations for me. Both 4.6 and 5.0 have the same error.
> This double integral calculation is correct:
>
> var("r t")
> f=integral(sq
