__call__(self, x, y, dx=0, dy=0, grid=True)
Input coordinates.
If :None:None:`grid` is False, evaluate the spline at points (x[i],
y[i]), i=0, ..., len(x)-1
. Standard Numpy broadcasting is obeyed.
If :None:None:`grid` is True: evaluate spline at the grid points defined by the coordinate arrays x, y. The arrays must be sorted to increasing order.
Note that the axis ordering is inverted relative to the output of meshgrid.
Order of x-derivative
Order of y-derivative
Whether to evaluate the results on a grid spanned by the input arrays, or at points specified by the input arrays.
Evaluate the spline or its derivatives at given positions.
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