symmetric polynomial

Noun

 * 1)  A polynomial which remains unchanged if its variables are permuted
 * $$x+y+z$$
 * $$xyz$$
 * $$2x^2+2y^2+2z^2$$, etc.
 * An example of a non-symmetric polynomial is $$x+2y$$: if we interchange $$x$$ and $$y$$, this polynomial changes to $$2x+y$$.

Hyponyms

 * elementary symmetric polynomial