Category: Updates

What do the ping dots mean?

Every Ping iron has a small color-coded dot that identifies the relative lie angle. A black dot signifies a standard lie approximately in the middle of t...

What is AB in sets examples?

The set A−B consists of elements that are in A but not in B. For example if A={1,2,3} and B={3,5}, then A−B={1,2}. In Figure 1.8, A−B is shown by the sha...