Developer Reference

Intel® oneAPI Math Kernel Library LAPACK Examples

ID 766877
Date 10/31/2024
Public
Document Table of Contents

DGELS Example

NOTE:

For a detailed description and reference information on this function, see the Intel® oneAPI Math Kernel Library Developer Reference.

The routine solves overdetermined or underdetermined real linear systems involving a rectangular matrix A, or its transpose, using a QR or LQ factorization of A. The routine assumes that A has full rank.

Several right-hand side vectors b and solution vectors x can be handled in a single call; they are stored as the columns of the right-hand side matrix B and the solution matrix X.

C Interface

Please refer to the Matrix Layout section of the C Interface Conventions for the description of Row Major (C default) and Column Major (Fortran default).