sget37.f - Man Page

subroutine sget37 (rmax, lmax, ninfo, knt, nin)
SGET37

SGET37

Purpose:

 SGET37 tests STRSNA, a routine for estimating condition numbers of
 eigenvalues and/or right eigenvectors of a matrix.

 The test matrices are read from a file with logical unit number NIN.

Parameters

RMAX

          RMAX is REAL array, dimension (3)
          Value of the largest test ratio.
          RMAX(1) = largest ratio comparing different calls to STRSNA
          RMAX(2) = largest error in reciprocal condition
                    numbers taking their conditioning into account
          RMAX(3) = largest error in reciprocal condition
                    numbers not taking their conditioning into
                    account (may be larger than RMAX(2))

LMAX

          LMAX is INTEGER array, dimension (3)
          LMAX(i) is example number where largest test ratio
          RMAX(i) is achieved. Also:
          If SGEHRD returns INFO nonzero on example i, LMAX(1)=i
          If SHSEQR returns INFO nonzero on example i, LMAX(2)=i
          If STRSNA returns INFO nonzero on example i, LMAX(3)=i

NINFO

          NINFO is INTEGER array, dimension (3)
          NINFO(1) = No. of times SGEHRD returned INFO nonzero
          NINFO(2) = No. of times SHSEQR returned INFO nonzero
          NINFO(3) = No. of times STRSNA returned INFO nonzero

KNT

          KNT is INTEGER
          Total number of examples tested.

NIN

          NIN is INTEGER
          Input logical unit number

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line 89 of file sget37.f.