On 28-08-2013 18:29, Wilhelm Haager wrote:
> (%i1) integrate(sin(omega*t)*exp(-s*t),t,0,inf);
> Is s positive, negative or zero?
>
> An answer is not accepted (neither n, nor z, nor p).
> The old Maxima version 5.27.0 works fine.
That seems definitely a bug in 5.30; it also fails for me in Ubuntu, but
if I use assume it works fine:
(%i2) assume(s>0)$
(%i3) integrate(sin(omega*t)*exp(-s*t),t,0,inf);
(%o3) omega/(s^2+omega^2)
Could you please "create a ticket" fort that bug in
http://sourceforge.net/p/maxima/bugs/ ?
(if have to log in or you do not want to do it please tell us and we
will create the ticket).
Best regards,
Jaime