# cget37.f - Man Page

TESTING/EIG/cget37.f

## Synopsis

### Functions/Subroutines

subroutine **cget37** (rmax, lmax, ninfo, knt, nin)**CGET37**

## Function/Subroutine Documentation

### 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***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))

*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

*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

*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 **cget37.f**.

## Author

Generated automatically by Doxygen for LAPACK from the source code.

## Referenced By

The man page cget37(3) is an alias of cget37.f(3).

Tue Nov 28 2023 12:08:42 Version 3.12.0 LAPACK