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In mathematics, a symmetric polynomial is a polynomial P in n variables, such that if any of the variables are interchanged, one obtains the same polynomial ...
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Symmetric Polynomials. A symmetric polynomial is a polynomial where if you switch any pair of variables, it remains the same.

Symmetric polynomial

In mathematics, a symmetric polynomial is a polynomial P in n variables, such that if any of the variables are interchanged, one obtains the same polynomial. Formally, P is a symmetric polynomial if for any permutation σ of the subscripts 1, 2,... Wikipedia
Mar 5, 2022 · f is a symmetric polynomial if every way of switching around (i.e., permuting) the variables leaves f the same.