Multivariate Polynomial
A polynomial in more than one variable, e.g., P(x,y)=a_(22)x^2y^2+a_(21)x^2y+a_(12)xy^2+a_(11)xy+a_(10)x+a_(01)y+a_(00).
See also
Polynomial, Univariate PolynomialExplore with Wolfram|Alpha
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Cite this as:
Weisstein, Eric W. "Multivariate Polynomial." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/MultivariatePolynomial.html