scipy.linalg.interpolative.id_to_svd¶
- scipy.linalg.interpolative.id_to_svd(B, idx, proj)[source]¶
Convert ID to SVD.
The SVD reconstruction of a matrix with skeleton matrix B and ID indices and coefficients idx and proj, respectively, is:
U, S, V = id_to_svd(B, idx, proj) A = numpy.dot(U, numpy.dot(numpy.diag(S), V.conj().T))
See also svd.
Parameters : B : numpy.ndarray
Skeleton matrix.
idx : numpy.ndarray
Column index array.
proj : numpy.ndarray
Interpolation coefficients.
Returns : U : numpy.ndarray
Left singular vectors.
S : numpy.ndarray
Singular values.
V : numpy.ndarray
Right singular vectors.