Re: [Maxima-discuss] subst on expressions with sums

[Yury <yur...@gm...>]

Stavros Macrakis (Σταῦρος Μακράκης <macrakis <at> alum.mit.edu> writes:

> Maxima has a different substitution routine, ratsubst, which does have
mathematical knowledge, and which will  perform ratsubst(x,a*b,2*a*b) =>
2*x, ratsubst(x,b/c,a*b/c) => a*x.

And this answers my question. Thanks a lot!

Yury

Big P.S.: However, the ratsubst isn't even in the same section as subst.
While I was 'clever' enough to guess about there being 'subst' function, how
was I to know I have to look for 'ratsubst' as well? 

Could such useful things (e.g., "this function has/has not mathematical
knowledge", "look in the ratsubst") be put into a documentation? Or is there
an "open source textbook" of such a kind?

Yury