Hi, You might have missed the first part of my message. I know that the integral is divergent but Sage says it is zero. Thanks.
Best, Sinan On Thu, Oct 10, 2024 at 6:59 PM Vincent Delecroix <20100.delecr...@gmail.com> wrote: > Hi, > > What did you expect? The function 1/x^2 is not integrable at 0. The > following (convergent) integrals does work > > sage: integral(1/x^2, (x, 1, +oo)) > 1 > sage: integral(1/x^2, (x, -oo, -1)) > 1 > > The following (divergent) integral produces the same result > > sage: integral(1/x^2, (x, -1, 1)) > Traceback (most recent call last): > ... > ValueError: Integral is divergent. > > Note that this kind of questions is better directed to either > https://ask.sagemath.org or https://groups.google.com/g/sage-support. > > Best > Vincent > > On Thu, 10 Oct 2024 at 18:02, sinan...@gmail.com <sinankap...@gmail.com> > wrote: > > > > Hi, > > > > I would like to report the following: > > > > I tried to integrate 1/x^2 from -oo to oo, and here is what I got: > > > > -- > > In cocalc, the series is calculated wrongly: > > 'SageMath version 10.4, Release Date: 2024-07-19' > > in: integral(1/x^2, (x,-oo,oo)) > > out: 0 > > -- > > > > In sagecell.sagemath.org, everything seems to be fine: > > > > 'SageMath version 10.2, Release Date: 2023-12-03' > > > > integral(1/x^2, (x,-oo,oo)) > > ValueError: Integral is divergent. > > > > Thanks, > > > > -- > > You received this message because you are subscribed to the Google > Groups "sage-devel" group. > > To unsubscribe from this group and stop receiving emails from it, send > an email to sage-devel+unsubscr...@googlegroups.com. > > To view this discussion on the web visit > https://groups.google.com/d/msgid/sage-devel/728a2f53-d3b2-48a4-99ff-47f15e025a41n%40googlegroups.com > . > > -- > You received this message because you are subscribed to a topic in the > Google Groups "sage-devel" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/sage-devel/-pDExtT6H4M/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > sage-devel+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/sage-devel/CAGEwAA%3DC0H%3Di3aM99ouE3_5UaMnpaCSNVosLi%2B%2BROR3pKooJeg%40mail.gmail.com > . > -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-devel/CAP06J56EEuqF%3DDM2EoMdrm6HbfWhKK3MfJGCcrFtLxpCjC68ig%40mail.gmail.com.
