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zla_gerpvgrw.f -

# SYNOPSIS

## Functions/Subroutines

DOUBLE PRECISION function zla_gerpvgrw (N, NCOLS, A, LDA, AF, LDAF)

ZLA_GERPVGRW multiplies a square real matrix by a complex matrix.

# Function/Subroutine Documentation

## DOUBLE PRECISION function zla_gerpvgrw (integerN, integerNCOLS, complex*16, dimension( lda, * )A, integerLDA, complex*16, dimension( ldaf, * )AF, integerLDAF)

ZLA_GERPVGRW multiplies a square real matrix by a complex matrix.
Purpose:
``` ZLA_GERPVGRW computes the reciprocal pivot growth factor
norm(A)/norm(U). The "max absolute element" norm is used. If this is
much less than 1, the stability of the LU factorization of the
(equilibrated) matrix A could be poor. This also means that the
solution X, estimated condition numbers, and error bounds could be
unreliable.
```
Parameters:
N
```          N is INTEGER
The number of linear equations, i.e., the order of the
matrix A.  N >= 0.
```
NCOLS
```          NCOLS is INTEGER
The number of columns of the matrix A. NCOLS >= 0.
```
A
```          A is DOUBLE PRECISION array, dimension (LDA,N)
On entry, the N-by-N matrix A.
```
LDA
```          LDA is INTEGER
The leading dimension of the array A.  LDA >= max(1,N).
```
AF
```          AF is DOUBLE PRECISION array, dimension (LDAF,N)
The factors L and U from the factorization
A = P*L*U as computed by ZGETRF.
```
LDAF
```          LDAF is INTEGER
The leading dimension of the array AF.  LDAF >= max(1,N).
```
Author:
Univ. of Tennessee
Univ. of California Berkeley
NAG Ltd.
Date:
September 2012
Definition at line 100 of file zla_gerpvgrw.f.

# Author

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