multiplication matrix

hi everyone..i'm having trouble with multiplication matrix. this is what i came up with so far and i know its wrong...nay help would be very appricated....

void mult_matrix()
{
int iArrayFirst[4][4];
int iArraySecond[4][4];
int iArrayAnswer[4][4];
int i;
int j;

//get first array from user
for(i=0;i<4;i++)
{
for (j=0;j<4;j++)
{
printf("enter value:");
scanf("%d", &iArrayFirst[i][j]);
}
printf("\n");
}
//get second array from user
for(i=0;i<4;i++)
{
for (j=0;j<4;j++)
{
printf("enter value:");
scanf("%d", &iArraySecond[i][j]);
}
printf("\n");
}
//calculate the answer array
for(i=0;i<4;i++)
{
for(j=0;j<4;j++)
{
iArrayAnswer[i][j]=iArrayFirst * iArraySecond[i][j];
}
}
print_matrix(iArrayAnswer);

I think you have an error in your calculating array algorithm, try this instead:

Code:

---

for(row = 0; row < 4; row++)
{
        for(column = 0; column < 4; column++)
        {
                iArrayAnswer[row][column] = 0;
                for(i = 0, j = 0; i < 4 && j < 4; i++, j++)
                        iArrayAnswer[row][column] += (iArrayFirst[row][i] * iArraySecond[j][column]);
        }
}

---

Lots of edits: Forgot the tags:rolleyes: