---
name: "clarcm"
section: "3lapack"
platform: "linux"
package: "liblapack-doc"
version: "3.2.1-8"
release: "Debian 6.0 (Squeeze)"
platforms: ["linux"]
url: "https://new.carta.tech/clarcm/3lapack"
---

# clarcm(3lapack)

performs a very simple matrix-matrix multiplication

## NAME

CLARCM - performs a very simple matrix-matrix multiplication

## SYNOPSIS

- SUBROUTINE CLARCM(

  M, N, A, LDA, B, LDB, C, LDC, RWORK )

- INTEGER

  LDA, LDB, LDC, M, N

- REAL

  A( LDA, \* ), RWORK( \* )

- COMPLEX

  B( LDB, \* ), C( LDC, \* )

## PURPOSE

CLARCM 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.\

## ARGUMENTS

- M (input) INTEGER

  The number of rows of the matrix A and of the matrix C. M \>= 0.

- N (input) INTEGER

  The number of columns and rows of the matrix B and the number of columns of the matrix C. N \>= 0.

- A (input) REAL array, dimension (LDA, M)

  A contains the M by M matrix A.

- LDA (input) INTEGER

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

- B (input) REAL array, dimension (LDB, N)

  B contains the M by N matrix B.

- LDB (input) INTEGER

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

- C (input) COMPLEX array, dimension (LDC, N)

  C contains the M by N matrix C.

- LDC (input) INTEGER

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

- RWORK (workspace) REAL array, dimension (2\*M\*N)