It works on my maxima 5.9 with gcl, but there is a bug !
(D1) FALSE
(C2) integrate(sqrt(2-2*cos(t)),t,0,2*%pi);
Is SIN(t)^2+COS(t)^2+2*COS(t)+1 positive, negative, or zero?
positive;
(D2) 0
This is however impossible, because the function is positive...
Maple returns 8 !
Le Mardi 30 Mars 2004 09:02, Shaun Jackman a écrit :
> I upgraded from Maxima 5.6 to 5.9.0 and I can't figure out how to
> integrate now. What follows is a sample session.
>
> Thanks,
> Shaun
>
>
> GCL (GNU Common Lisp) (2.6.1) Tue Jan 27 20:46:38 UTC 2004
> Licensed under GNU Library General Public License
> Dedicated to the memory of W. Schelter
>
> Use (help) to get some basic information on how to use GCL.
> Maxima restarted.
> (C1) sqrt( 2 - 2*cos(t));
>
> (D1) SQRT(2 - 2 COS(t))
> (C2) integrate( %, t, 0, 2*%pi);
>
> 2 2
> Is SIN (t) + COS (t) + 2 COS(t) + 1 positive, negative, or zero?
>
> positive
> positive
> positive
> Incorrect syntax: POSITIVE is not an infix operator
> \npositive\npositive\n
> ^
> (C3)
>
> _______________________________________________
> Maxima mailing list
> Maxima@www.math.utexas.edu
> http://www.math.utexas.edu/mailman/listinfo/maxima
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