+++ /dev/null
-// Copyright ©2016 The Gonum Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package mat
-
-// TriKind represents the triangularity of the matrix.
-type TriKind bool
-
-const (
- // Upper specifies an upper triangular matrix.
- Upper TriKind = true
- // Lower specifies a lower triangular matrix.
- Lower TriKind = false
-)
-
-// SVDKind specifies the treatment of singular vectors during an SVD
-// factorization.
-type SVDKind int
-
-const (
- // SVDNone specifies that no singular vectors should be computed during
- // the decomposition.
- SVDNone SVDKind = iota + 1
- // SVDThin computes the thin singular vectors, that is, it computes
- // A = U~ * Σ * V~^T
- // where U~ is of size m×min(m,n), Σ is a diagonal matrix of size min(m,n)×min(m,n)
- // and V~ is of size n×min(m,n).
- SVDThin
- // SVDFull computes the full singular value decomposition,
- // A = U * Σ * V^T
- // where U is of size m×m, Σ is an m×n diagonal matrix, and V is an n×n matrix.
- SVDFull
-)
-
-// GSVDKind specifies the treatment of singular vectors during a GSVD
-// factorization.
-type GSVDKind int
-
-const (
- // GSVDU specifies that the U singular vectors should be computed during
- // the decomposition.
- GSVDU GSVDKind = 1 << iota
- // GSVDV specifies that the V singular vectors should be computed during
- // the decomposition.
- GSVDV
- // GSVDQ specifies that the Q singular vectors should be computed during
- // the decomposition.
- GSVDQ
-
- // GSVDNone specifies that no singular vector should be computed during
- // the decomposition.
- GSVDNone
-)