poly.spad line 956 [edit on github]
This package lifts a mapping from coefficient rings R
to S
to a mapping from UnivariatePolynomial(x
, R
) to UnivariatePolynomial(y
, 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.