#include int main( int argc, char* argv[] ) { double a[3][6]; // Define 2 dim array int i, j; for ( i = 0; i < 3; i++ ) for ( j = 0; j < 6; j++ ) a[i][j] = i+j; for ( i = 0; i < 3; i++ ) { for ( j = 0; j < 6; j++ ) printf( "%lf ", a[i][j] ); printf( "\n" ); } }