Function qform
This subroutine proceeds from the computed QR factorization of an m by n matrix a to accumulate the m by m orthogonal matrix Q from its factored form.
void qform(Real)
(
size_t m,
size_t n,
Real* q,
size_t ldq,
Real* wa
);
Parameters
| Name | Description |
|---|---|
| m | a positive integer input variable set to the number of rows of a and the order of q. |
| n | a positive integer input variable set to the number of columns of a. |
| q | an array of length m^2. On input the full lower trapezoid in the first min(m,n) columns of Q contains the factored form. on output Q has been accumulated into a square matrix. |
| ldq | a positive integer input variable not less than m which specifies the leading dimension of the array q. |
| wa | a work array of length m. |