x : scalar or arraylike of length N
Point or points at which to evaluate the derivatives
der : None or integer
How many derivatives to extract; None for all potentially
nonzero derivatives (that is a number equal to the number
of points). This number includes the function value as 0th
derivative.
Returns :
—— :
d : array
If the interpolator’s values are Rdimensional then the
returned array will be der by N by R. If x is a scalar,
the middle dimension will be dropped; if R is 1 then the
last dimension will be dropped.
