dlatb4.f - Man Page

TESTING/LIN/dlatb4.f

Synopsis

Functions/Subroutines

subroutine dlatb4 (path, imat, m, n, type, kl, ku, anorm, mode, cndnum, dist)
DLATB4

Function/Subroutine Documentation

subroutine dlatb4 (character*3 path, integer imat, integer m, integer n, character type, integer kl, integer ku, double precision anorm, integer mode, double precision cndnum, character dist)

DLATB4

Purpose:

``` DLATB4 sets parameters for the matrix generator based on the type of
matrix to be generated.```
Parameters

PATH

```          PATH is CHARACTER*3
The LAPACK path name.```

IMAT

```          IMAT is INTEGER
An integer key describing which matrix to generate for this
path.```

M

```          M is INTEGER
The number of rows in the matrix to be generated.```

N

```          N is INTEGER
The number of columns in the matrix to be generated.```

TYPE

```          TYPE is CHARACTER*1
The type of the matrix to be generated:
= 'S':  symmetric matrix
= 'P':  symmetric positive (semi)definite matrix
= 'N':  nonsymmetric matrix```

KL

```          KL is INTEGER
The lower band width of the matrix to be generated.```

KU

```          KU is INTEGER
The upper band width of the matrix to be generated.```

ANORM

```          ANORM is DOUBLE PRECISION
The desired norm of the matrix to be generated.  The diagonal
matrix of singular values or eigenvalues is scaled by this
value.```

MODE

```          MODE is INTEGER
A key indicating how to choose the vector of eigenvalues.```

CNDNUM

```          CNDNUM is DOUBLE PRECISION
The desired condition number.```

DIST

```          DIST is CHARACTER*1
The type of distribution to be used by the random number
generator.```
Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line 118 of file dlatb4.f.

Author

Generated automatically by Doxygen for LAPACK from the source code.

Referenced By

The man page dlatb4(3) is an alias of dlatb4.f(3).

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