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LAPACK
3.7.0
LAPACK: Linear Algebra PACKage
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| subroutine zget37 | ( | double precision, dimension( 3 ) | RMAX, |
| integer, dimension( 3 ) | LMAX, | ||
| integer, dimension( 3 ) | NINFO, | ||
| integer | KNT, | ||
| integer | NIN | ||
| ) |
ZGET37
ZGET37 tests ZTRSNA, 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.
| [out] | RMAX | RMAX is DOUBLE PRECISION array, dimension (3)
Value of the largest test ratio.
RMAX(1) = largest ratio comparing different calls to ZTRSNA
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 ZGEHRD returns INFO nonzero on example i, LMAX(1)=i
If ZHSEQR returns INFO nonzero on example i, LMAX(2)=i
If ZTRSNA returns INFO nonzero on example i, LMAX(3)=i |
| [out] | NINFO | NINFO is INTEGER array, dimension (3)
NINFO(1) = No. of times ZGEHRD returned INFO nonzero
NINFO(2) = No. of times ZHSEQR returned INFO nonzero
NINFO(3) = No. of times ZTRSNA returned INFO nonzero |
| [out] | KNT | KNT is INTEGER
Total number of examples tested. |
| [in] | NIN | NIN is INTEGER
Input logical unit number |