**Pythagorean** — Pyth a*go re*an, a. [L. Pythagoreus, Gr. ?.] Of or pertaining to Pythagoras (a Greek philosopher, born about 582 b. c.), or his philosophy. [1913 Webster] The central thought of the Pythagorean philosophy is the idea of number, the recognition of … The Collaborative International Dictionary of English

**Pythagorean letter** — Pythagorean Pyth a*go re*an, a. [L. Pythagoreus, Gr. ?.] Of or pertaining to Pythagoras (a Greek philosopher, born about 582 b. c.), or his philosophy. [1913 Webster] The central thought of the Pythagorean philosophy is the idea of number, the… … The Collaborative International Dictionary of English

**Pythagorean proposition** — Pythagorean Pyth a*go re*an, a. [L. Pythagoreus, Gr. ?.] Of or pertaining to Pythagoras (a Greek philosopher, born about 582 b. c.), or his philosophy. [1913 Webster] The central thought of the Pythagorean philosophy is the idea of number, the… … The Collaborative International Dictionary of English

**Pythagorean interval** — In musical tuning theory, a Pythagorean interval is a musical interval with frequency ratio equal to a power of two divided by a power of three, or vice versa. For instance, the perfect fifth with ratio 3/2 (equivalent to 31/21) and the perfect… … Wikipedia

**Pythagorean comma** — (PC) defined in Pythagorean tuning as difference between semitones (A1–m2), or interval between enharmonically equivalent notes (from D♭ to C♯). The di … Wikipedia

**Pythagorean tuning** — is a system of musical tuning in which the frequency relationships of all intervals are based on the ratio 3:2. Its name comes from medieval texts which attribute its discovery to Pythagoras, but its use has been documented as long ago as 3500… … Wikipedia

**Pythagorean theorem** — See also: Pythagorean trigonometric identity The Pythagorean theorem: The sum of the areas of the two squares on the legs (a and b) equals the area of the square on the hypotenuse (c) … Wikipedia

**Copernican system** — Pythagorean Pyth a*go re*an, a. [L. Pythagoreus, Gr. ?.] Of or pertaining to Pythagoras (a Greek philosopher, born about 582 b. c.), or his philosophy. [1913 Webster] The central thought of the Pythagorean philosophy is the idea of number, the… … The Collaborative International Dictionary of English

**Neo-Pythagorean Philosophy** — • An ethico religious society founded by Pythagoras, which flourished especially in Magna Graecia in the fifth century B.C. Catholic Encyclopedia. Kevin Knight. 2006. Neo Pythagorean Philosophy Neo Pythagorean Philoso … Catholic encyclopedia

**Musical system of ancient greece** — This article concerns itself with the music theoretical and mathematical tone system of ancient Greece. For a discussion of the cultural aspects and history of ancient Greek music, see Music of ancient Greece. The musical system of ancient Greece … Wikipedia