?imatdiv

That is, $\text{[math]}$ .

$\text{[math]}$

Interface Definition

C interface:

void cblas_simatdiv(const enum CBLAS_ORDER ordering, const enum CBLAS_TRANSPOSE TransA, const BLASINT m, const BLASINT n, const float alpha, float *A, const BLASINT lda, float *BC, const BLASINT ldb);

void cblas_dimatdiv(const enum CBLAS_ORDER ordering, const enum CBLAS_TRANSPOSE TransA, const BLASINT m, const BLASINT n, const double alpha, double *A, const BLASINT lda, double *BC, const BLASINT ldb);

void cblas_cimatdiv(const enum CBLAS_ORDER ordering, const enum CBLAS_TRANSPOSE TransA, const BLASINT m, const BLASINT n, const float *alpha, float *A, const BLASINT lda, float *BC, const BLASINT ldb);

void cblas_zimatdiv(const enum CBLAS_ORDER ordering, const enum CBLAS_TRANSPOSE TransA, const BLASINT m, const BLASINT n, const double *alpha, double *A, const BLASINT lda, double *BC, const BLASINT ldb);

Fortran interface:

CALL SIMATDIV(ORDER, TRANSA, M, N, ALPHA, A, LDA, BC, LDB)

CALL DIMATDIV(ORDER, TRANSA, M, N, ALPHA, A, LDA, BC, LDB)

CALL CIMATDIV(ORDER, TRANSA, M, N, ALPHA, A, LDA, BC, LDB)

CALL ZIMATDIV(ORDER, TRANSA, M, N, ALPHA, A, LDA, BC, LDB)

Parameters

Parameter	Type	Description	Input/Output
order	Enumeration type CBLAS_ORDER	Indicates whether the matrix is in row- or column-major order.	Input
TransA	Enumeration type CBLAS_TRANSPOSE	Indicates whether matrix A is a conventional matrix, a transpose matrix, or a conjugate matrix. If TransA = CblasNoTrans, op(A) = A. If TransA = CblasTrans, op(A) = A'. If TransA = CblasConjNoTrans, op(A) = conj(A). If TransA = CblasConjTrans, op(A) = conj(A').	Input
M	Integer	Number of rows of matrices op(A) and BC.	Input
N	Integer	Number of columns of matrices op(A) and BC.	Input
alpha	Single-precision floating-point type for simatdiv Double-precision floating-point type for dimatdiv Single-precision complex type for cimatdiv Double-precision complex type for zimatdiv	Multiplication coefficient.	Input
A	Single-precision floating-point type for simatdiv Double-precision floating-point type for dimatdiv Single-precision complex type for cimatdiv Double-precision complex type for zimatdiv	Matrix A.	Input
lda	Integer	If matrix A is column store and TransA = CblasNoTrans, lda is at least max(1, m); otherwise, lda is at least max(1, n). If matrix A is row store and TransA = CblasNoTrans, lda is at least max(1, n); otherwise, lda is at least max(1, m).	Input
BC	Single-precision floating-point type for simatdiv Double-precision floating-point type for dimatdiv Single-precision complex type for cimatdiv Double-precision complex type for zimatdiv	Matrix BC.	Input
ldb	Integer	If the matrix is column store and TransB = CblasNoTrans, ldb is at least max(1, m); otherwise, ldb is at least max(1, n). If the matrix is row store and TransB = CblasNoTrans, ldb is at least max(1, n); otherwise, ldb is at least max(1, m).	Input

Dependency

#include "kblas.h"

Examples

C interface:

    int m = 4;
    int n = 3;
    int lda = 4;
    int ldb = 4;
    float alpha = 2.0;

    /** 
     *    A: 
     *         0.235257, 0.268674, 0.151790,     
     *         -0.204541, 0.142802, 0.036246,
     *         -0.238498, 0.423810, 0.181002,
     *         -0.002402, -0.240821, -0.309177  
     *    BC: 
     *         -0.284033, -0.407091, 0.487585,            
     *         -0.126079, 0.380664, -0.407300,
     *         0.243892, -0.259406, -0.257296,
     *         0.018376, 0.148356, 0.379532,
     */

    float a[12] = {0.645728, 0.664078, 0.775762,
                   0.806953, 0.601041, 0.714864,
                   0.915711, 0.803360, 0.562129,
                   0.522928, 0.647835, 0.824213
    };

    float bc[12] = {-2.414662, -3.030372, 6.424446,   
                   1.232803, 5.331337, -22.474379,
                   -2.045228, -1.224161, -2.843022,
                   -15.298911, -1.232085, -2.455110
    };

    cblas_simatdiv(CblasColMajor, CblasNoTrans, m, n, alpha, a, lda, bc, ldb);

    /** 
     * Output BC: 
     *        -2.414662, -3.030372, 6.424446,      
     *        1.232803, 5.331337, -22.474379,
     *        -2.045228, -1.224161, -2.843022, 
     *        -15.298911, -1.232085, -2.455110
     */

Fortran interface:

      PROGRAM IMATDIV
      INTEGER :: M=4, N=3
      INTEGER :: LDA=4, LDB=4
      REAL(4) :: ALPHA=2.0
      REAL(4) :: A(4, 3), BC(4, 3)
      DATA A/0.645728, 0.664078, 0.775762,
             0.806953, 0.601041, 0.714864,
             0.915711, 0.803360, 0.562129,
             0.522928, 0.647835, 0.824213/
      DATA BC/-2.414662, -3.030372, 6.424446,   
              1.232803, 5.331337, -22.474379,
              -2.045228, -1.224161, -2.843022,
              -15.298911, -1.232085, -2.455110/

      EXTERNAL SIMATDIV
      CALL SIMATDIV('C', 'N', M, N, ALPHA, A, LDA, BC, LDB)
      END

     * Output BC: 
     *        1.798285, 2.196716, 1.565241,      
     *        2.386664, 1.469238, 1.978835,
     *        3.396264, 1.824785, 1.380008, 
     *        1.925460, 1.502539, 2.252343

Parent topic: KML_BLAS-like Extensions