Overload List
| # | Signature | Description |
|---|---|---|
| 1 | TMtx *LQR(TMtx *L, TMtx *Q, TMtx *R, bool Minimized = true); | QR or LQ factorization. |
| 2 | TMtx *LQR(TMtx *L, TMtx *Q, TMtx *R, TVecInt *P, bool Minimized = true); | QR or LQ factorization. |
Overload 1: TMtx *LQR(TMtx *L, TMtx *Q, TMtx *R, bool Minimized = true);
QR or LQ factorization.
Performs QR or LQ factorization. If TMtx::Rows is bigger or equal than TMtx::Cols for the calling matrix, the linear system of equations is overdetermined and the method performs QR factorization. The matrix L is not used and can be nil. If Rows is smaller than Cols, the linear system equations is underdetermined and the method performs LQ factorization. The matrix R is not used and can be nil. If the Matrix Q is nil, then it's not explicitly formed. If the pointer is not nil, the full size Q is computed. If you do not want economy size L, Q and R, set MinSize to false. The calling matrix must have full rank. If the rank is not full, use the TMtx::SVD method. If the Minimized parameter is false, the following holds true:
A = Q*R A = L*Q
Overload 2: TMtx *LQR(TMtx *L, TMtx *Q, TMtx *R, TVecInt *P, bool Minimized = true);
QR or LQ factorization.
Performs QR factorization with optional pivoting or LQ factorization. The pivoting of columns in the calling matrix is performed only when P is not nil and Rows > Cols.
The P[i] holds the permutation of columns in A, so that:
P(A) = Q*R