Function: partition (<expr>, <x>) Returns a list of two expressions. They are (1) the factors of <expr> (if it is a product), the terms of <expr> (if it is a sum), or the list (if it is a list) which dont contain <x> and, (2) the factors, terms, or list which do.
(%i1) partition (2*a*x*f(x), x); (%o1) [2 a, x f(x)] (%i2) partition (a+b, x); (%o2) [b + a, 0] (%i3) partition ([a, b, f(a), c], a); (%o3) [[b, c], [a, f(a)]]
There are also some inexact matches for
?? partition to see them.
(%o1) true (%i2)