On Sat, Sep 24, 2022 at 11:35:21PM -0700, 'Nasser M. Abbasi' via FriCAS -
computer algebra system wrote:
>
> "As I wrote large size/timeout on such integrals is artifact of
> Sage interface. You can see answer on FriCAS command line."
>
> But it hangs using Fricas directly. When I tried it above I was not using
> sagemath at all.
>
> =========================
> (1) -> setSimplifyDenomsFlag(true)
> (1) false
> Type:
> Boolean
> (2) -> ii:=integrate(cos(d*x+c)^4/(a+b*sin(d*x+c)^3)^2,x);
> ===========================
>
> The above hangs on my computer. I am using 1.3.8. I waited for more than
> 30
> minutes and had to stop it.
I see. I am using version with various uncommited patches and it
finishes resonably quickly (in few seconds). Usually my developement
version gives the same results (and in comparable time) as release,
but this case is different...
--
Waldek Hebisch
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