Le forum de XCAS

Thanks for those posts. Some great ideas; the syntax is much more powerful than I realised.

I use xcas for ad-hoc algebra, and I would find the isol function convenient. Thanks for the workaround, it's more convenient than my technique.

Sorry for the English post. If there is an equation g = m/(m+1) then on the HP calculator CAS one can put this on the stack 'g = m/(m+1)' 'm' ISOL which rewrites as m=-g/(g-1) In xcas, I only know how to do this solve(g-m(m+1)=0.m) to get the same rewriting If I had previouslydefined g:=m/(m+1) it w...