For thousands of years, mathematicians and scientists have worked on calculating the digits of pi -- a project that could literally go on forever. For now, we at least know the first 100 trillion ...

Now for the important part. Today, as you may know, is Pi Day. Why today? Because it’s March 14—yes, 3/14—and 3.14 is the value of pi to two decimals. Of course, the actual number continues to an ...

We all know pi, at least the first three digits of it. If for some reason you forgot them though, there’s good news. All you need to get that knowledge back is some ...