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# numpy.polynomial.hermite.hermgrid2d

`numpy.polynomial.hermite.``hermgrid2d`(x, y, c)

  Evaluate a 2-D Hermite series on the Cartesian product of x and y.

  This function returns the values:

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

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

  If c has fewer than two dimensions, ones are implicitly appended to its shape to make it 2-D. The shape of the result will be c.shape[2:] + x.shape.

  Parameters : | x, y : array_like, compatible objects The two dimensional series is evaluated at the points in the Cartesian product of x and y. If x or y 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.

  See also

  `hermval`, `hermval2d`, `hermval3d`, `hermgrid3d`

  Notes