I also get those warnings (which you can turn off by setting
ratprint:false), but I get the result [1] in the end:
(%i14) [(0.5*(s+1)+s)/((s+0.5)*(s+1)-s^2)];
(%o14) [(0.5*(s+1)+s)/((s+0.5)*(s+1)-s^2)]
(%i15) ratsimp(%);
`rat' replaced 0.5 by 1/2 = 0.5
`rat' replaced 0.5 by 1/2 = 0.5
(%o15) [1]
By the way, Maxima in general works better with exact numbers (1/2) rather
than floats (0.5).
-s
On Thu, Oct 29, 2009 at 12:48 PM, Hugo Coolens <coolens at kahosl.be> wrote:
> u:invert(g).currents;
> result:u[2]/u[1];
>