SRC/zlag2c.f(3) Library Functions Manual SRC/zlag2c.f(3)

SRC/zlag2c.f


subroutine zlag2c (m, n, a, lda, sa, ldsa, info)
ZLAG2C converts a complex double precision matrix to a complex single precision matrix.

ZLAG2C converts a complex double precision matrix to a complex single precision matrix.

Purpose:

!>
!> ZLAG2C converts a COMPLEX*16 matrix, SA, to a COMPLEX matrix, A.
!>
!> RMAX is the overflow for the SINGLE PRECISION arithmetic
!> ZLAG2C checks that all the entries of A are between -RMAX and
!> RMAX. If not the conversion is aborted and a flag is raised.
!>
!> This is an auxiliary routine so there is no argument checking.
!> 

Parameters

M
!>          M is INTEGER
!>          The number of lines of the matrix A.  M >= 0.
!> 

N

!>          N is INTEGER
!>          The number of columns of the matrix A.  N >= 0.
!> 

A

!>          A is COMPLEX*16 array, dimension (LDA,N)
!>          On entry, the M-by-N coefficient matrix A.
!> 

LDA

!>          LDA is INTEGER
!>          The leading dimension of the array A.  LDA >= max(1,M).
!> 

SA

!>          SA is COMPLEX array, dimension (LDSA,N)
!>          On exit, if INFO=0, the M-by-N coefficient matrix SA; if
!>          INFO>0, the content of SA is unspecified.
!> 

LDSA

!>          LDSA is INTEGER
!>          The leading dimension of the array SA.  LDSA >= max(1,M).
!> 

INFO

!>          INFO is INTEGER
!>          = 0:  successful exit.
!>          = 1:  an entry of the matrix A is greater than the SINGLE
!>                PRECISION overflow threshold, in this case, the content
!>                of SA in exit is unspecified.
!> 

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line 106 of file zlag2c.f.

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