data transformation polynomial transformation A polynomial transformation is a data transformation that is obtained through a polynomial, where a polynomial is a mathematical expression involving a sum of powers in one or more variables multiplied by coefficients (e.g. see http://mathworld.wolfram.com/Polynomial.html). The number of variables and the degree are properties of a polynomial. The degree of a polynomial is the highest power of its terms, where the terms of a polynomial are the individual summands with the coefficients omitted. Elisabetta Manduchi WEB: http://mathworld.wolfram.com/Polynomial.html a*x+b, with a non-zero, is a polynomial of degree one in one variable; a*x^2+b*x+c, with a nonzero, is a polynomial of degree 2 in 1 variable; a*x*y+b*y+c, with a non-zero, is a polynomial of degree 2 in 2 variables (x and y); a_1*x_1+...+a_n*x_n+b, with at least one of the a_i's non-zero, is a polynomial of degree one in n variables polynomial transformation ready for release