numpy.polynomial.polynomial.polyfromroots(roots)

numpy.core.records.fromrecords(recList, dtype=None, shape=None, formats=None, names=None, titles=None, aligned=False, byteorder=None)

chararray.flatten(order='C') Return a copy of the array collapsed into one dimension.

numpy.polynomial.legendre.legadd(c1, c2)

Legendre.cutdeg(deg)

numpy.empty_like(a, dtype=None, order='K', subok=True) Return a new array with the same shape and type as a given array.

numpy.find_common_type(array_types, scalar_types)

numpy.geterrobj() Return the current object that defines floating-point error handling. The error object contains all

Note numpy.emath is a preferred alias for

Polynomial.deriv(m=1)