Evaluate a 3-D Hermite series on the Cartesian product of x, y, and z.
This function returns the values:
System Message: WARNING/2 (p(a,b,c) = \sum_{i,j,k} c_{i,j,k} * H_i(a) * H_j(b) * H_k(c)
)
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Transcript written on math.log.
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.
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Returns : | values : ndarray, compatible object
The values of the two dimensional polynomial at points in the Cartesian
product of x and y.
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Notes