PY, Py, py or P-Y may stand for:
In mathematics, the Pythagorean theorem, also known as Pythagoras's theorem, is a fundamental relation in Euclidean geometry among the three sides of a right triangle.
Python is a widely used high-level programming language for general-purpose programming, created by Guido van Rossum and first released in 1991. An interpreted language, Python has a design philosophy which emphasizes code readability (notably using whitespace indentation to delimit code blocks rather than curly braces or keywords), and a syntax which allows programmers to express concepts in fewer lines of code than possible in languages such as C++ or Java.
Pyotr Ilyich Tchaikovsky (/ˈpjoʊtər ɪˈljɪtʃ tʃaɪˈkɒfski/; Russian: Пётр Ильи́ч Чайко́вский; tr. Pëtr Il'ič Čajkovskij; 25 April/7 May 1840 – 25 October/6 November 1893), often anglicized as Peter Ilyich Tchaikovsky, was a Russian composer of the late-Romantic period, some of whose works are among the most popular music in the classical repertoire.
Pyongyang (/ˈpjɒŋˈjæŋ, ˈpjʌŋ-/; (Chosŏn'gŭl: 평양; Hancha: 平壤), Korean pronunciation: [pʰjʌŋ.jaŋ], literally: "Flat Land" or "Peaceful Land") is the capital and largest city of the Democratic People’s Republic of Korea (commonly known as North Korea).
Pythagoras of Samos (US /pɪˈθæɡərəs/; UK /paɪˈθæɡərəs/; Greek: Πυθαγόρας ὁ Σάμιος Pythagóras ho Sámios "Pythagoras the Samian", or simply Πυθαγόρας; Πυθαγόρης in Ionian Greek; c.
A pygmy is a member of an ethnic group whose average height is unusually short; anthropologists define pygmy as a member of any group where adult men are on average less than 150 cm (4 feet 11 inches) tall.
A Pythagorean triple consists of three positive integers a, b, and c, such that a2 + b2 = c2. Such a triple is commonly written (a, b, c), and a well-known example is (3, 4, 5).
Pyrolysis is a thermochemical decomposition of organic material at elevated temperatures in the absence of oxygen (or any halogen).
The Pyrenees (/ˈpɪrᵻniːz/; Spanish: Pirineos [piɾiˈneos], French: Pyrénées [piʁene], Aragonese: Pirineus, Catalan: Pirineus [piɾiˈnɛus], Occitan: Pirenèus, Basque: Pirinioak [piˈɾinioˌak] or Auñamendiak [auˈɲamendiˌak]) is a range of mountains in southwest Europe that forms a natural border between France and Spain.