Module DQRLS in NMS

• NMS Information

• Components
  • Documentation from ITL
  • Fullsource from ITL
  • Sample from ITL
  • Source from ITL

DQRLS

 
Solves m-by-n system A*X=B in least squares sense.
 
Classes  :  D9a1 . Least squares (L-2) solution of singular, overdetermined or
                 underdetermined systems of linear equations without
                 constraints
 
Type     : Fortran software in NMS collection.
Access   : Public domain. Portable.
Precision: Double.
 
Usage    : CALL DQRLS(A,LDA,M,N,TOL,KR,B,X,RSD,JP,QR,W,ITASK,IND)
 
Details  : Documentation Fullsource Sample Source
Sites    : (1) ITL
 

Implementation of DQRLS from NMS on ITL

 
ITL:       Unix Workstation Network, National Institute of Standards and
           Technology (NIST), Gaithersburg, MD. Available to NIST staff.
 
Precision: Double. (Single: SQRLS)