This is documentation for an old release of NumPy (version 1.14). Read this page in the documentation of the latest stable release (version 2.2).

Hermite Module, “Physicists’” (numpy.polynomial.hermite)

New in version 1.6.0.

This module provides a number of objects (mostly functions) useful for dealing with Hermite series, including a Hermite class that encapsulates the usual arithmetic operations. (General information on how this module represents and works with such polynomials is in the docstring for its “parent” sub-package, numpy.polynomial).

Hermite Class

Hermite(coef[, domain, window]) An Hermite series class.

Basics

hermval(x, c[, tensor]) Evaluate an Hermite series at points x.
hermval2d(x, y, c) Evaluate a 2-D Hermite series at points (x, y).
hermval3d(x, y, z, c) Evaluate a 3-D Hermite series at points (x, y, z).
hermgrid2d(x, y, c) Evaluate a 2-D Hermite series on the Cartesian product of x and y.
hermgrid3d(x, y, z, c) Evaluate a 3-D Hermite series on the Cartesian product of x, y, and z.
hermroots(c) Compute the roots of a Hermite series.
hermfromroots(roots) Generate a Hermite series with given roots.

Fitting

hermfit(x, y, deg[, rcond, full, w]) Least squares fit of Hermite series to data.
hermvander(x, deg) Pseudo-Vandermonde matrix of given degree.
hermvander2d(x, y, deg) Pseudo-Vandermonde matrix of given degrees.
hermvander3d(x, y, z, deg) Pseudo-Vandermonde matrix of given degrees.

Calculus

hermder(c[, m, scl, axis]) Differentiate a Hermite series.
hermint(c[, m, k, lbnd, scl, axis]) Integrate a Hermite series.

Algebra

hermadd(c1, c2) Add one Hermite series to another.
hermsub(c1, c2) Subtract one Hermite series from another.
hermmul(c1, c2) Multiply one Hermite series by another.
hermmulx(c) Multiply a Hermite series by x.
hermdiv(c1, c2) Divide one Hermite series by another.
hermpow(c, pow[, maxpower]) Raise a Hermite series to a power.

Quadrature

hermgauss(deg) Gauss-Hermite quadrature.
hermweight(x) Weight function of the Hermite polynomials.

Miscellaneous

hermcompanion(c) Return the scaled companion matrix of c.
hermdomain
hermzero
hermone
hermx
hermtrim(c[, tol]) Remove “small” “trailing” coefficients from a polynomial.
hermline(off, scl) Hermite series whose graph is a straight line.
herm2poly(c) Convert a Hermite series to a polynomial.
poly2herm(pol) Convert a polynomial to a Hermite series.