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mul of two matrix.c
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mul of two matrix.c
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#include<stdio.h>
#include<conio.h>
int i,j;
void read(int r,int c,int mat1[10][10],int mat2[10][10])
{
printf("\n enter the first matrix: \n");
for(i=0;i<r;i++)
{
for(j=0;j<c;j++)
{
scanf("%d",&mat1[i][j]);
}
}
printf("\n enter the second matrix: \n");
for(i=0;i<r;i++)
{
for(j=0;j<c;j++)
{
scanf("%d",&mat2[i][j]);
}
}
}
void display1(int r,int c,int mat1[][10],int mat2[][10])
{
printf("\n the first matrix is: \n");
for(i=0;i<r;i++)
{
for(j=0;j<c;j++)
{
printf("%d\t",mat1[i][j]);
}
printf("\n");
}
printf("\n the second matrix is: \n");
for(i=0;i<r;i++)
{
for(j=0;j<c;j++)
{
printf("%d\t",mat2[i][j]);
}
printf("\n");
}
}
void mul(int r,int c,int mat1[][10],int mat2[][10],int mat3[][10])
{
int k;
int sum=0;
for(i=0;i<2;i++)
{
for(j=0;j<2;j++)
{
sum=0;
for(k=0;k<2;k++)
{
sum=sum+mat1[i][k]*mat2[k][j];
}
mat3[i][j]=sum;
}
}
}
void display2(int r,int c,int mat3[][10])
{
printf("\n the Resultant matrix is: \n");
for(i=0;i<r;i++)
{
for(j=0;j<c;j++)
{
printf("%d\t",mat3[i][j]);
}
printf("\n");
}
}
int main()
{
int r=1,c=1;
int mat1[10][10],mat2[10][10],mat3[10][10];
printf("\n enter the size of rows: \n");
scanf("%d",&r);
printf("\n enter the size of columns: \n");
scanf("%d",&c);
read(r,c,mat1,mat2);
display1(r,c,mat1,mat2);
mul(r,c,mat1,mat2,mat3);
display2(r,c,mat3);
getch();
return 0;
}