Difference Between Dynamics Ax and Nav

Dear frnds,

Can any one will provide me exact difference between Dynamics Ax and Dynamics Nav.

As i seen all online forums Dynamics Nav related issue is more discussed than Ax.

Rgds

BK

http://msdynamicsax.weebly.com/1/post/2013/01/the-real-difference-between-microsoft-dynamics-nav-and-ax.html