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Cream of the Crop 1
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Cream of the Crop 1.iso
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PROGRAM
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MATRIX04.ARJ
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MATSUB.C
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C/C++ Source or Header
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1992-05-22
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/*
*-----------------------------------------------------------------------------
* file: matsub.c
* desc: matrix substraction
* by: ko shu pui, patrick
* date: 24 nov 91 v0.1
* revi:
* ref:
* [1] Mary L.Boas, "Mathematical Methods in the Physical Sciene,"
* John Wiley & Sons, 2nd Ed., 1983. Chap 3.
*
*-----------------------------------------------------------------------------
*/
#include <stdio.h>
#include "matrix.h"
/*
*-----------------------------------------------------------------------------
* funct: mat_sub
* desct: subtraction of two matrice
* given: A, B = compatible matrice to be added
* retrn: NULL if malloc() fails
* else allocated matrix of A - B
* comen:
*-----------------------------------------------------------------------------
*/
MATRIX mat_sub( A, B )
MATRIX A, B;
{
int i, j;
MATRIX C;
if ((C = mat_creat( MatRow(A), MatCol(A), UNDEFINED )) == NULL)
return (NULL);
for (i=0; i<MatRow(A); i++)
for (j=0; j<MatCol(A); j++)
{
C[i][j] = A[i][j] - B[i][j];
}
return (C);
}