/* Example outputs:

Enter dimensions: 2
Enter u: 1 1
Enter v: 0 1
Their scalar product is: 1
u = [ 0.707107 0.707107 ]
v = [ 0 1 ]


Enter dimensions: 3 
Enter u: 0 1 2
Enter v: 3 4 5
Their scalar product is: 14
u = [ 0 0.447214 0.894427 ]
v = [ 0.424264 0.565685 0.707107 ]


Enter dimensions: 4 
Enter u: 1 0 0 0
Enter v: 0 0 0 1
Their scalar product is: 0
u = [ 1 0 0 0 ]
v = [ 0 0 0 1 ]

*/