Antiquaternion          Antiquaternion
Dir_Elimination         Direct Elimination for LSE problem.
GQR                     Generalized QR Factorization
LSE                     LSE package
LSE_GQR                 LSE and GQR Factorization
Lagrange                Lagrange multipliers for LSE problem.
Nullspace               Nullspace method for LSE problem.
Quaternion              Quaternion transformation
RQ                      RQ Factorization of a matrix
