How can I put a polynomial not just in terms of powers of one variable, but also in terms of mixed power variable:
a1 + a2 x^2 + a3 y^2 + a4 x y + a5 x y^2 ....
?
Thanks.
Seems to work, thanks.
Try Total[MonomialList[poly,vars]].
Total[MonomialList[poly,vars]]
The problem with ExpandAll is that it does not collect coefficients of same powers together.
That's pretty far from an example, but maybe you want to use Expand. Just a guess.
Expand
If you have a polynomial but with all sort of parenthesis, garbled together, how to put them in the above form.
This is not a very clear question. You might want to give more detail and maybe input and desired output.
