NewSparseUnivariatePolynomialFunctions2(R, S)¶

This package lifts a mapping from coefficient rings R to S to a mapping from sparse univariate polynomial over R to a sparse univariate polynomial over S. Note that the mapping is assumed to send zero to zero, since it will only be applied to the non-zero coefficients of the polynomial.
map(func, poly) creates a new polynomial by applying func to every non-zero coefficient of the polynomial poly.