What's the meaning of the Pi (letter) »
Pi (letter)
This page is about the meaning, origin and characteristic of the symbol, emblem, seal, sign, logo or flag: Pi (letter).
Pi (/ˈpaɪ/; Greek: [pi], uppercase Π, lowercase π) is the sixteenth letter of the Greek alphabet, representing [p]. In the system of Greek numerals it has a value of 80. It was derived from the Phoenician letter pe Phoenician pe.svg. Letters that arose from pi include Cyrillic Pe (П, п), Coptic pi (Ⲡ, ⲡ), and Gothic pairthra (
The upper-case letter Π is used as a symbol for:
The product operator in mathematics, indicated with capital pi notation ∏ (in analogy to the use of the capital Sigma Σ as summation symbol).
In textual criticism, Codex Petropolitanus, a 9th-century, uncial codex of the Gospels, now located in St. Petersburg, Russia.
In legal shorthand, it represents a plaintiff.
The osmotic pressure in chemistry. Π=MRT
The lower-case letter π is used as a symbol for:
The mathematical real transcendental (and thus irrational) constant π ≈ 3.1415926535897932384626433832795028841971…, the ratio of a circle's circumference to its diameter in Euclidean geometry. The letter "π" is the first letter of the Greek words "περιφέρεια" 'periphery' and "περίμετρος" 'perimeter', i.e. the circumference.
The prime-counting function in mathematics.
Homotopy groups in algebraic topology.
Dimensionless parameters constructed using the Buckingham π theorem of dimensional analysis.
The hadron called the pi meson or pion.
Economic profit in microeconomics.
Inflation rate in macroeconomics.
A type of chemical bond in which the P-orbitals overlap, called a pi bond.
The natural projection on the tangent bundle on a manifold.
The unary operation of projection in relational algebra.
In reinforcement learning π denotes policy.
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Graphical characteristics:
Asymmetric, Open shape, Monochrome, Contains both straight and curved lines, Has no crossing lines.
Pi (letter) is part of the Alphabets group.
More symbols in Alphabets:
An alphabet is a standard set of letters (basic written symbols or graphemes) which is used to write one or more languages based on the general principle that the letters represent phonemes (basic si… read more »
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