LAPACK  3.5.0
LAPACK: Linear Algebra PACKage
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dget37.f File Reference

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Functions/Subroutines

subroutine dget37 (RMAX, LMAX, NINFO, KNT, NIN)
 DGET37

Function/Subroutine Documentation

subroutine dget37 ( double precision, dimension( 3 )  RMAX,
integer, dimension( 3 )  LMAX,
integer, dimension( 3 )  NINFO,
integer  KNT,
integer  NIN 
)

DGET37

Purpose:
 DGET37 tests DTRSNA, 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 DOUBLE PRECISION array, dimension (3)
          Value of the largest test ratio.
          RMAX(1) = largest ratio comparing different calls to DTRSNA
          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 DGEHRD returns INFO nonzero on example i, LMAX(1)=i
          If DHSEQR returns INFO nonzero on example i, LMAX(2)=i
          If DTRSNA returns INFO nonzero on example i, LMAX(3)=i
[out]NINFO
          NINFO is INTEGER array, dimension (3)
          NINFO(1) = No. of times DGEHRD returned INFO nonzero
          NINFO(2) = No. of times DHSEQR returned INFO nonzero
          NINFO(3) = No. of times DTRSNA 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.
Date
November 2011

Definition at line 91 of file dget37.f.

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