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bundles / numpy 2.4.3 / numpy / polynomial / hermite / hermgrid3d

function

numpy.polynomial.hermite:hermgrid3d

source: /numpy/polynomial/hermite.py :1059

Signature

def   hermgrid3d ( x y z c )

Summary

Evaluate a 3-D Hermite series on the Cartesian product of x, y, and z.

Extended Summary

This function returns the values:

where the points (a, b, c) consist of all triples formed by taking a from x, b from y, and c from z. The resulting points form a grid with x in the first dimension, y in the second, and z in the third.

The parameters x, y, and z are converted to arrays only if they are tuples or a lists, otherwise they are treated as a scalars. In either case, either x, y, and z or their elements must support multiplication and addition both with themselves and with the elements of c.

If c has fewer than three dimensions, ones are implicitly appended to its shape to make it 3-D. The shape of the result will be c.shape[3:] + x.shape + y.shape + z.shape.

Parameters

x, y, z : array_like, compatible objects

The three dimensional series is evaluated at the points in the Cartesian product of x, y, and z. If x, y, or z is a list or tuple, it is first converted to an ndarray, otherwise it is left unchanged and, if it isn't an ndarray, it is treated as a scalar.

c : array_like

Array of coefficients ordered so that the coefficients for terms of degree i,j are contained in c[i,j]. If c has dimension greater than two the remaining indices enumerate multiple sets of coefficients.

Returns

values : ndarray, compatible object

The values of the two dimensional polynomial at points in the Cartesian product of x and y.

Examples

from numpy.polynomial.hermite import hermgrid3d
x = [1, 2]
y = [4, 5]
z = [6, 7]
c = [[[1, 2, 3], [4, 5, 6]], [[7, 8, 9], [10, 11, 12]]]
hermgrid3d(x, y, z, c)

See also

hermgrid2d
hermval
hermval2d
hermval3d

Aliases

  • numpy.polynomial.hermite.hermgrid3d