numpy.polynomial.polynomial.polyval2d(x, y, c)
Evaluate a 2-D polynomial at points (x, y).
This function returns the value
y are converted to arrays only if they are tuples or a lists, otherwise they are treated as a scalars and they must have the same shape after conversion. In either case, either
y or their elements must support multiplication and addition both with themselves and with the elements of
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.
New in version 1.7.0.
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