Pythagorean

Pythagorean, meaning of or pertaining to the ancient Ionian mathematician, philosopher, and music theorist Pythagoras, may refer to:

Philosophy

 * Pythagoreanism, the esoteric and metaphysical beliefs purported to have been held by Pythagoras
 * Neopythagoreanism, a school of philosophy reviving Pythagorean doctrines that became prominent in the 1st and 2nd centuries AD
 * Pythagorean diet, the name for vegetarianism before the nineteenth century

Mathematics

 * Pythagorean theorem
 * Pythagorean triple
 * Pythagorean prime
 * Pythagorean trigonometric identity
 * Table of Pythagoras, another name for the multiplication table

Music

 * Pythagorean comma
 * Pythagorean hammers
 * Pythagorean tuning

Other uses

 * Pythagorean cup
 * Pythagorean expectation, a baseball statistical term
 * Pythagorean letter