# zlag2c.f - Man Page

SRC/zlag2c.f

## Synopsis

### Functions/Subroutines

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

## Function/Subroutine Documentation

### subroutine zlag2c (integer m, integer n, complex*16, dimension( lda, * ) a, integer lda, complex, dimension( ldsa, * ) sa, integer ldsa, integer info)

**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**.

## Author

Generated automatically by Doxygen for LAPACK from the source code.

## Referenced By

The man page zlag2c(3) is an alias of zlag2c.f(3).

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