scipy.interpolate.PiecewisePolynomial.extend¶
- PiecewisePolynomial.extend(xi, yi, orders=None)[source]¶
Extend the PiecewisePolynomial by a list of points
Parameters: xi : array_like
A sorted list of x-coordinates.
yi : list of lists of length N1
yi[i] (if axis == 0) is the list of derivatives known at xi[i].
orders : int or list of ints
A list of polynomial orders, or a single universal order.
direction : {None, 1, -1}
Indicates whether the xi are increasing or decreasing.
+1 indicates increasing
-1 indicates decreasing
None indicates that it should be deduced from the first two xi.