# cchkq3.f - Man Page

TESTING/LIN/cchkq3.f

## Synopsis

### Functions/Subroutines

subroutine cchkq3 (dotype, nm, mval, nn, nval, nnb, nbval, nxval, thresh, a, copya, s, tau, work, rwork, iwork, nout)
CCHKQ3

## Function/Subroutine Documentation

### subroutine cchkq3 (logical, dimension( * ) dotype, integer nm, integer, dimension( * ) mval, integer nn, integer, dimension( * ) nval, integer nnb, integer, dimension( * ) nbval, integer, dimension( * ) nxval, real thresh, complex, dimension( * ) a, complex, dimension( * ) copya, real, dimension( * ) s, complex, dimension( * ) tau, complex, dimension( * ) work, real, dimension( * ) rwork, integer, dimension( * ) iwork, integer nout)

CCHKQ3

Purpose:

` CCHKQ3 tests CGEQP3.`
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.```

NNB

```          NNB is INTEGER
The number of values of NB and NX contained in the
vectors NBVAL and NXVAL.  The blocking parameters are used
in pairs (NB,NX).```

NBVAL

```          NBVAL is INTEGER array, dimension (NNB)
The values of the blocksize NB.```

NXVAL

```          NXVAL is INTEGER array, dimension (NNB)
The values of the crossover point NX.```

THRESH

```          THRESH is REAL
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.```

A

```          A is COMPLEX 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 array, dimension (MMAX*NMAX)`

S

```          S is REAL array, dimension
(min(MMAX,NMAX))```

TAU

`          TAU is COMPLEX array, dimension (MMAX)`

WORK

```          WORK is COMPLEX array, dimension
(max(M*max(M,N) + 4*min(M,N) + max(M,N)))```

RWORK

`          RWORK is REAL array, dimension (4*NMAX)`

IWORK

`          IWORK is INTEGER array, dimension (2*NMAX)`

NOUT

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

Univ. of Tennessee

Univ. of California Berkeley

NAG Ltd.

Definition at line 155 of file cchkq3.f.

## Author

Generated automatically by Doxygen for LAPACK from the source code.

## Referenced By

The man page cchkq3(3) is an alias of cchkq3.f(3).

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