Pi is represented by the symbolπ(the sixteenth letter of the Greek alphabet) and appears in a number of measurement formulas. These formulas include c = 2πr and A=πr2, where c is a circle's circumference or the distance...

Pi (or ) is the ratio of the circumference of a circle to its diameter. This ratio is the same for every circle--for instance, if you double the diameter of a circle, you double its circumference as well. The observation that this ratio is constant has...

The number pi is the ratio of the circumference to the diameter of a circle. The use of pi among ancient civilizations played a significant role in geometry. It was often necessary to determine volumes of granaries and buildings, or areas of land....

During the Renaissance, mathematicians continued their centuries-old fascination with π. As part of this, they calculated π to ever-greater precision while developing new formulae to add digits more quickly. Part of this fascination with...

Pi or π is one of the most important mathematical constants, approximately equal to 3.14159. It represents the ratio of any circle's circumference to its diameter in Euclidean geometry, which is the same as the ratio of a circle's area to the square of...

The summer my mother had her breasts done, my father started a vegetable garden, and I took advanced seventh grade math with Mr. Azarian, a caramel-colored man from Tehran. The first week Mr. Azarian told us about infinite numbers and how at fifteen he...

A Louisiana Christmas tradition It many sound strange, but I've had meat pies on my mind for a really long time - too long. It started at Thanksgiving about 24 years ago when I noticed an amazing similarity between the family recipe for...

This is a story about love. About inscrutable complexity and remarkable simplicity, about the promise of forever. It is about obsession and devotion, and grand gestures and 4,000-word love letters.It is about a curious group of people with an almost religious zeal for a mind-numbing...

A private investigator who worked to get condemned inmates off death row pleaded guilty Monday to forging documents to support their appeals, later declaring she did so because the death penalty is "barbaric."Kathleen Culhane, 40, admitted that she forged documents to try to stop the...