Answer:
a pointer or cursor
Explanation:
C
for(i=0; i<4; i++)
{
for(j=0;j<6;j++)
A[ i ][ j ] = 2* i - 3*j;
}
In this loop for each i = 0,1,2,3 we fill the the corresponding column values. and then move to next i value i.e. row.