* C06GSF Example Program Text * Mark 14 Revised. NAG Copyright 1989. * .. Parameters .. INTEGER MMAX, NMAX PARAMETER (MMAX=5,NMAX=20) INTEGER NIN, NOUT PARAMETER (NIN=5,NOUT=6) * .. Local Scalars .. INTEGER I, IFAIL, J, M, N * .. Local Arrays .. DOUBLE PRECISION U(MMAX*NMAX), V(MMAX*NMAX), X(MMAX*NMAX) * .. External Subroutines .. EXTERNAL C06GSF * .. Executable Statements .. WRITE (NOUT,*) 'C06GSF Example Program Results' * Skip heading in data file READ (NIN,*) 20 READ (NIN,*,END=100) M, N IF (M.LE.MMAX .AND. N.LE.NMAX) THEN DO 40 J = 1, M READ (NIN,*) (X(I*M+J),I=0,N-1) 40 CONTINUE WRITE (NOUT,*) WRITE (NOUT,*) 'Original data values' WRITE (NOUT,*) DO 60 J = 1, M WRITE (NOUT,99999) ' ', (X(I*M+J),I=0,N-1) 60 CONTINUE WRITE (NOUT,*) WRITE (NOUT,*) 'Original data written in full complex form' IFAIL = 1 * CALL C06GSF(M,N,X,U,V,IFAIL) * IF (IFAIL.EQ.0) THEN DO 80 J = 1, M WRITE (NOUT,*) WRITE (NOUT,99999) 'Real ', (U(I*M+J),I=0,N-1) WRITE (NOUT,99999) 'Imag ', (V(I*M+J),I=0,N-1) 80 CONTINUE GO TO 20 ELSE WRITE (NOUT,*) WRITE (NOUT,99998) ' ** C06GSF returned with IFAIL = ', + IFAIL END IF ELSE WRITE (NOUT,*) 'Invalid value of M or N' END IF 100 CONTINUE * 99999 FORMAT (1X,A,6F10.4) 99998 FORMAT (1X,A,I5) END