fyi, maxima regressions for integration tests

[Nasser M. Abbasi]

I do not know of a maxima bug tracking site or even a maxima forum.

If anyone knows , please feel free to report these 13 regressions.

These integrals were all solved in Maxima 5.44 but now fail in 4.46.
some of the error messages are the same, so only showing few of
them. I translated these from sagemath syntax, which is what
is used in the tests, to maxima syntax to post it here,
and hopefully I did not make a mistake.

I-> %i and arctan ->atan is the only changes I made.

Maxima 5.46 SBCL 2.0.1.debian via sagemath 9.6 vs.
Maxima 5.44 via sagemath 9.3
==================================
1. integrate((f*x+e)^3*csc(d*x+c)^2/(a+a*sin(d*x+c)),x);

QUOTIENT: Quotient by a polynomial of higher degree (case 1)
-- an error. To debug this try: debugmode(true);

2. integrate((f*x+e)^2*csc(d*x+c)^2/(a+a*sin(d*x+c)),x);
3. integrate((f*x+e)*csc(d*x+c)^2/(a+a*sin(d*x+c)),x);
4. integrate((f*x+e)^3*sec(d*x+c)^3/(a+a*sin(d*x+c)),x);
5. integrate((f*x+e)^2*sec(d*x+c)^3/(a+a*sin(d*x+c)),x);
6. integrate((f*x+e)*sec(d*x+c)^3/(a+a*sin(d*x+c)),x);

7. integrate((d*sec(f*x+e))^(2*n)*(a+%i*a*tan(f*x+e))^(3-n),x);
CQUOTIENT: quotient is not exact
-- an error. To debug this try: debugmode(true);

8. integrate((a+b*atan(c*x))/x^2/(d+%i*c*d*x)^3,x);

9. integrate((f*x+e)^3*sech(d*x+c)^3/(a+%i*a*sinh(d*x+c)),x);
QUOTIENT: Quotient by a polynomial of higher degree (case 1)
-- an error. To debug this try: debugmode(true);

10. integrate((f*x+e)^3*sech(d*x+c)^3/(a+%i*a*sinh(d*x+c)),x);
11. integrate(sech(d*x+c)^3/(a+%i*a*sinh(d*x+c)),x);
12. integrate(sech(x)^3/(%i+csch(x)),x);
13. integrate(sech(x)^4/(%i+csch(x)),x);


--Nasser

[anti...@math.uni.wroc.pl]

Nasser M. Abbasi <n...@12000.org> wrote:
> I do not know of a maxima bug tracking site or even a maxima forum.

Maxima is hosted at SourceForge:

http://maxima.sf.net/

AFAICS there is bugtracker and mailing list there.

--
Waldek Hebisch