numpy.polynomial.polynomial.polyvander3d()

numpy.polynomial.polynomial.polyvander3d

numpy.polynomial.polynomial.polyvander3d(x, y, z, deg) [source]

Pseudo-Vandermonde matrix of given degrees.

Returns the pseudo-Vandermonde matrix of degrees deg and sample points (x, y, z). If l, m, n are the given degrees in x, y, z, then The pseudo-Vandermonde matrix is defined by

V[..., (m+1)(n+1)i + (n+1)j + k] = x^i * y^j * z^k,

where 0 <= i <