Richard Fateman wrote:
> ratsubst(q,x/D^2,a);
> factor(%);
> ratsubst(x/D^2,q,%);
>
> Does it. Gives
> -(x/D-1)*(x/D+1)/(3*x/D+1)^4
>
>
Doesnot seem to work. I am getting
(%i4) ratsubst(x/D^2,q,%);
4 2 2
D - x D
(%o4) ------------------------------------------
4 3 2 2 3 4
D + 12 x D + 54 x D + 108 x D + 81 x
Using Debian Stable (Etch), maxima 5.10.0 installed from debian packages.
Does the behaviour change in later versions of maxima?
thanks
raju
--
Kamaraju S Kusumanchi
http://www.people.cornell.edu/pages/kk288/http://malayamaarutham.blogspot.com/