numpy.polynomial.polynomial.polyvander2d()

numpy.polynomial.polynomial.polyvander2d

numpy.polynomial.polynomial.polyvander2d(x, y, deg) [source]

Pseudo-Vandermonde matrix of given degrees.

Returns the pseudo-Vandermonde matrix of degrees deg and sample points (x, y). The pseudo-Vandermonde matrix is defined by

$V[..., (deg[1] + 1)*i + j] = x^i * y^j,$

where 0 <= i <= deg[0] and 0 <= j <= deg[1]. The leading indices of V登录查看完整内容