numpy.polynomial.legendre.legvander3d()

numpy.polynomial.legendre.legvander3d

numpy.polynomial.legendre.legvander3d(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

$V[..., (m+1)(n+1)i + (n+1)j + k] = L_i(x)*L_j(y)*L_k(z),$

where 0 <= i <= l登录查看完整内容






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