Anyone who's had to learn math or physics in school may have encountered pi at one point. More popularly known and written out in its Greek lowercase letter counterpart, π, it's essentially the ...

Bringing together ancient magical traditions, astronomy, demonology, and witchcraft symbols into one volume ... such as putting the Greek classical elements in the section on astrology.

It's Pi Day, and the world is celebrating more than just the Greek mathematical symbol (π). Retailers and restaurants everywhere have deals today. The folks at Offers.com have provided a list of ...

In The Language of Mathematics: The Stories behind the Symbols (Princeton University ... Eventually the plus and minus signs became universal, as did the English symbol for equality, but only ...