Investors and financial analysts often rely on the profitability index (PI) to determine whether the benefits of an investment opportunity outweigh its costs. Essentially, the PI compares projected ...

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 ...

Pi Day, which occurs every 14 March – or 3/14, in the US date format – celebrates the world’s favourite mathematical constant. This year, why not try an experiment to calculate its value? All you will ...

Calculating 100 trillion digits of pi is a feat worth celebrating with a pie. (Google Graphic / The Keyword) Three years after Seattle software developer Emma Haruka Iwao and her teammates at Google ...