`scipy.interpolate._interpolate:BPoly._raise_degree`

source: /scipy/interpolate/_interpolate.py :1841

Signature

staticmethod def _raise_degree ( c , d )

Summary

Raise a degree of a polynomial in the Bernstein basis.

Extended Summary

Given the coefficients of a polynomial degree k, return (the coefficients of) the equivalent polynomial of degree k+d.

Parameters

c : array_like: coefficient array, 1-D
d : integer

Returns

: array: coefficient array, 1-D array of length c.shape[0] + d

Notes

This uses the fact that a Bernstein polynomial b_{a, k} can be identically represented as a linear combination of polynomials of a higher degree k+d:

b_{a, k} = comb(k, a) \sum_{j=0}^{d} b_{a+j, k+d} \comb(d, j) / comb(k+d, a+j)

Aliases

scipy.interpolate.BPoly._raise_degree