# zlarcm.f man page

zlarcm.f —

## Synopsis

### Functions/Subroutines

subroutinezlarcm(M, N, A, LDA, B, LDB, C, LDC, RWORK)ZLARCMcopies all or part of a real two-dimensional array to a complex array.

## Function/Subroutine Documentation

### subroutine zlarcm (integerM, integerN, double precision, dimension( lda, * )A, integerLDA, complex*16, dimension( ldb, * )B, integerLDB, complex*16, dimension( ldc, * )C, integerLDC, double precision, dimension( * )RWORK)

**ZLARCM** copies all or part of a real two-dimensional array to a complex array.

**Purpose:**

```
ZLARCM performs a very simple matrix-matrix multiplication:
C := A * B,
where A is M by M and real; B is M by N and complex;
C is M by N and complex.
```

**Parameters:**

*M*

```
M is INTEGER
The number of rows of the matrix A and of the matrix C.
M >= 0.
```

*N*

```
N is INTEGER
The number of columns and rows of the matrix B and
the number of columns of the matrix C.
N >= 0.
```

*A*

```
A is DOUBLE PRECISION array, dimension (LDA, M)
A contains the M by M matrix A.
```

*LDA*

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

*B*

```
B is DOUBLE PRECISION array, dimension (LDB, N)
B contains the M by N matrix B.
```

*LDB*

```
LDB is INTEGER
The leading dimension of the array B. LDB >=max(1,M).
```

*C*

```
C is COMPLEX*16 array, dimension (LDC, N)
C contains the M by N matrix C.
```

*LDC*

```
LDC is INTEGER
The leading dimension of the array C. LDC >=max(1,M).
```

*RWORK*

`RWORK is DOUBLE PRECISION array, dimension (2*M*N)`

**Author:**

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

**Date:**

September 2012

Definition at line 115 of file zlarcm.f.

## Author

Generated automatically by Doxygen for LAPACK from the source code.

## Referenced By

zlarcm(3) is an alias of zlarcm.f(3).