* F04JGF Example Program Text * Mark 14 Revised. NAG Copyright 1989. * .. Parameters .. INTEGER MMAX, NMAX, NRA, LWORK PARAMETER (MMAX=8,NMAX=MMAX,NRA=MMAX,LWORK=4*NMAX) INTEGER NIN, NOUT PARAMETER (NIN=5,NOUT=6) * .. Local Scalars .. DOUBLE PRECISION SIGMA, TOL INTEGER I, IFAIL, IRANK, J, M, N LOGICAL SVD * .. Local Arrays .. DOUBLE PRECISION A(NRA,NMAX), B(MMAX), WORK(LWORK) * .. External Subroutines .. EXTERNAL F04JGF * .. Executable Statements .. WRITE (NOUT,*) 'F04JGF Example Program Results' * Skip heading in data file READ (NIN,*) READ (NIN,*) M, N TOL = 5.0D-4 WRITE (NOUT,*) IF (M.GT.0 .AND. M.LE.MMAX .AND. N.GT.0 .AND. N.LE.NMAX) THEN READ (NIN,*) ((A(I,J),J=1,N),I=1,M) READ (NIN,*) (B(I),I=1,M) IFAIL = 0 * CALL F04JGF(M,N,A,NRA,B,TOL,SVD,SIGMA,IRANK,WORK,LWORK,IFAIL) * WRITE (NOUT,*) 'Solution vector' WRITE (NOUT,99996) (B(I),I=1,N) WRITE (NOUT,*) WRITE (NOUT,99998) 'Standard error = ', SIGMA, ' Rank = ', + IRANK WRITE (NOUT,*) WRITE (NOUT,99997) 'SVD = ', SVD ELSE WRITE (NOUT,99999) 'M or N out of range: M = ', M, ' N = ', N END IF STOP * 99999 FORMAT (1X,A,I5,A,I5) 99998 FORMAT (1X,A,F6.3,A,I2) 99997 FORMAT (1X,A,L2) 99996 FORMAT (1X,8F9.3) END