LAPACK 3.11.0
LAPACK: Linear Algebra PACKage

◆ cget37()

subroutine cget37 ( real, dimension( 3 )  RMAX,
integer, dimension( 3 )  LMAX,
integer, dimension( 3 )  NINFO,
integer  KNT,
integer  NIN 
)

CGET37

Purpose:
 CGET37 tests CTRSNA, 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
[out]RMAX
          RMAX is REAL array, dimension (3)
          Value of the largest test ratio.
          RMAX(1) = largest ratio comparing different calls to CTRSNA
          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))
[out]LMAX
          LMAX is INTEGER array, dimension (3)
          LMAX(i) is example number where largest test ratio
          RMAX(i) is achieved. Also:
          If CGEHRD returns INFO nonzero on example i, LMAX(1)=i
          If CHSEQR returns INFO nonzero on example i, LMAX(2)=i
          If CTRSNA returns INFO nonzero on example i, LMAX(3)=i
[out]NINFO
          NINFO is INTEGER array, dimension (3)
          NINFO(1) = No. of times CGEHRD returned INFO nonzero
          NINFO(2) = No. of times CHSEQR returned INFO nonzero
          NINFO(3) = No. of times CTRSNA returned INFO nonzero
[out]KNT
          KNT is INTEGER
          Total number of examples tested.
[in]NIN
          NIN is INTEGER
          Input logical unit number
Author
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.