Basics
poly1d(c_or_r[, r, variable]) A one-dimensional polynomial class.
polyval(p, x) Evaluate a polynomial at specific values.
poly(seq_of_zeros) Find the coefficients of a polynomial with the given sequence of roots.
roots(p) Return the roots of a polynomial with coefficients given in p.
Fitting
polyfit(x, y, deg[, rcond, full, w, cov]) Least squares polynomial fit.
Calculus
polyder(p[, m]) Return the derivative of the specified order of a polynomial.
polyint(p[, m, k]) Return a