79. WRITE A C PROGRAM OF MATRIX ADDITION USING FUNCTION

/*program of addition of two given 3X3 matrix through function*/

#include<stdio.h>
#include<conio.h>
void show_matrix(int mat[3][3]);
void add_matrix(int matA[3][3], int matB[3][3], intmatSum[3][3]);
int main()
{
int x[3][3] = { {1,2,3}, {4,5,6}, {7,8,9} };
int y[3][3] = { {1,4,7}, {2,5,8}, {4,1,2} };
int z[3][3];
add_matrix(x,y,z);
printf("\nFirst matrix is :\n");
show_matrix(x);
printf("\nSecond matrix is :\n");
show_matrix(y);
printf("\nNew addition matrix is :\n");
show_matrix(z);
getch();
return 0;
}

void add_matrix(int matA[3][3], int matB[3][3], intmatSum[3][3])
{
int r,c;
for(r=0; r<3; r++)
{
for(c=0; c<3; c++)
matSum[r][c]=matA[r][c]+matB[r][c];
}
}

void show_matrix(int mat[3][3])
{
int r,c;
for(r=0; r<3; r++)
{
for(c=0; c<3; c++)
printf(" %d",mat[r][c]);
printf("\n");
}
}

output

First matrix is :
1 2 3
4 5 6
7 8 9


Second matrix is :
1 4 7
2 5 8
4 1 2


New addition matrix is :
2 6 10
6 10 14
11 9 11