# zchktz.f - Man Page

TESTING/LIN/zchktz.f

## Synopsis

### Functions/Subroutines

subroutine zchktz (dotype, nm, mval, nn, nval, thresh, tsterr, a, copya, s, tau, work, rwork, nout)
ZCHKTZ

## Function/Subroutine Documentation

### subroutine zchktz (logical, dimension( * ) dotype, integer nm, integer, dimension( * ) mval, integer nn, integer, dimension( * ) nval, double precision thresh, logical tsterr, complex*16, dimension( * ) a, complex*16, dimension( * ) copya, double precision, dimension( * ) s, complex*16, dimension( * ) tau, complex*16, dimension( * ) work, double precision, dimension( * ) rwork, integer nout)

ZCHKTZ

Purpose:

` ZCHKTZ tests ZTZRZF.`
Parameters

DOTYPE

```          DOTYPE is LOGICAL array, dimension (NTYPES)
The matrix types to be used for testing.  Matrices of type j
(for 1 <= j <= NTYPES) are used for testing if DOTYPE(j) =
.TRUE.; if DOTYPE(j) = .FALSE., then type j is not used.```

NM

```          NM is INTEGER
The number of values of M contained in the vector MVAL.```

MVAL

```          MVAL is INTEGER array, dimension (NM)
The values of the matrix row dimension M.```

NN

```          NN is INTEGER
The number of values of N contained in the vector NVAL.```

NVAL

```          NVAL is INTEGER array, dimension (NN)
The values of the matrix column dimension N.```

THRESH

```          THRESH is DOUBLE PRECISION
The threshold value for the test ratios.  A result is
included in the output file if RESULT >= THRESH.  To have
every test ratio printed, use THRESH = 0.```

TSTERR

```          TSTERR is LOGICAL
Flag that indicates whether error exits are to be tested.```

A

```          A is COMPLEX*16 array, dimension (MMAX*NMAX)
where MMAX is the maximum value of M in MVAL and NMAX is the
maximum value of N in NVAL.```

COPYA

`          COPYA is COMPLEX*16 array, dimension (MMAX*NMAX)`

S

```          S is DOUBLE PRECISION array, dimension
(min(MMAX,NMAX))```

TAU

`          TAU is COMPLEX*16 array, dimension (MMAX)`

WORK

```          WORK is COMPLEX*16 array, dimension
(MMAX*NMAX + 4*NMAX + MMAX)```

RWORK

`          RWORK is DOUBLE PRECISION array, dimension (2*NMAX)`

NOUT

```          NOUT is INTEGER
The unit number for output.```
Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line 135 of file zchktz.f.

## Author

Generated automatically by Doxygen for LAPACK from the source code.

## Referenced By

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

Tue Nov 28 2023 12:08:43 Version 3.12.0 LAPACK