Matrix addition using 2-D array in turbo c?

Answer 1

#include<stdio.h>

#include<conio.h>

int main(void)

{

int a[100][100]={0}; /* initializing matrices to '0' */

int b[100][100]={0};

int c[100][100]={0}; /*matrix-c for multiplication*/

/*r1,c1 are rows and coloumns for matrix-a.r2,c2 for matrix-b.*/

int r1,c1,r2,c2;

int i,j,k;

clrscr();

printf("enter the no of ROWS and COLOUMNS for MATRIX-A\n");

scanf("%d %d",&r1,&c1);

printf("enter the no of ROWS and COLOUMNS for MATRIX-B\n");

scanf("%d %d",&r2,&c2);

if(c1==r2)

{

printf("matrix multiplication possible\n\nenter numbers in MATRIX-A\n");

/* to enter numbers in matrix-a*/

for(i=0;i<r1;i++)

for(j=0;j<c1;j++)

scanf("%d",&a[i][j]);

printf("enter numbers in MATRIX-B\n");

/* to enter numbers in matrix-b*/

for(i=0;i<r2;i++)

for(j=0;j<c2;j++)

scanf("%d",&b[i][j]);

/*for matrices multiplication*/

for(i=0;i<r1;i++)

for(j=0;j<c2;j++)

for(k=0;k<c1;k++)

*(*(c+i)+j)+=*(*(a+i)+j)*(*(*(b+k)+j));

printf("result of multiplication of matrices is \n");

/*to display as matrix format*/

for(i=0;j<r1;i++)

{

printf("\n");

for(j=0;j<c2;j++)

printf("%d\t",*(*(c+i)+j));

}

} //if

else

printf("MATRIX multiplication not Possible\n");

getch();

return 0;

}

/* TWINKLING TWINS */

Answer 2

# include <stdio.h>

#include <conio.h>

void main ()

{

int i,j;

int a[2][2],b[2][2],c[2][2];

printf("\nAddition of A & B martices");

printf("\n\n Enter elements of martix A = ");

for (i=0;i<2;i++)

{

for (j=0;j<2;j++)

{

scanf("%d",&a[i][j]);

}

}

printf("\nEnter elements of matrix B = ");

for (i=0;i<2;i++)

{

for (j=0;j<2;j++)

{

scanf("%d",&b[i][j]);

}

}

for (i=0;i<2;i++)

{

for (j=0;j<2;j++)

c[i][j]=a[i][j]+b[i][j];

}

printf("Answare");

printf("\n\n\n");

for(i=0;i<2;i++)

{

for(j=0;j<2;j++)

{

printf("%d",c[i][j]);

printf("\t");

}

printf("\n");

}

getch();

}