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- /*
- *-----------------------------------------------------------------------------
- * file: matadd.c
- * desc: matrix addition
- * 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_add
- * desct: addition 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_add( 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);
- }
-
-