227 relations: +1, Absolute value, Ace, AD 1, Adelic algebraic group, Adrien-Marie Legendre, Alan Ford (comics), Aleph, Algebra, Alkali metal, Almost surely, American football, Arithmetic, Artemis Fowl, Artificial intelligence, Ascender (typography), ASCII, Assamese language, Association football, Asymptotic analysis, −1, Bani (letter), Baseball, Benford's law, Bengali language, Binary code, Boolean data type, Breton language, C0 and C1 control codes, Calculus, Category (mathematics), Category theory, Centered hexagonal number, Central Kurdish, Ceres (dwarf planet), Characteristic (algebra), Chinese numerals, Circle group, Common Era, Complex number, Composite number, Computer, Counting, Counting rods, Cribbage, Cube (algebra), Danish language, Data, Devanagari, Dimensionless quantity, ..., Division (mathematics), Dutch language, Eastern Arabic numerals, Electric charge, Empty product, Eoin Colfer, Exponentiation, Factorial, Factorization, Fibonacci number, Field (mathematics), Field with one element, Figurate number, Finite field, Formula One, Fullback (rugby league), Fundamental theorem of arithmetic, Gaussian integer, Ge'ez script, Generating function, Georgian language, German language, Glyph, Goalkeeper (association football), Gothic language, Greater London, Greek language, Greek numerals, Gregorian calendar, Group (mathematics), Gujarati language, Gupta script, Harry Nilsson, Hebrew numerals, Helium, Hydrogen, Identity element, Identity matrix, If and only if, Imaginary unit, Indian subcontinent, Initial and terminal objects, Integer, Integral, International Telecommunication Union, Inverse function, January, Japanese numerals, Kannada, Khmer numerals, Kicking specialist, Korean language, Latin, Legendre's constant, Length, Line segment, List of highways numbered 1, List of public transport routes numbered 1, Lithuanian language, Logarithm, Lorien Legacies, Magnitude (mathematics), Magnus, Malayalam, Matrix of ones, Max Bunker, Measurement, Minor planet, Monoid, Multiplication, Multiplicative function, National Football League, National Hockey League, Natural number, Neoplatonism, Nepali language, NFL preseason, Norm (mathematics), North American Numbering Plan, Number, Number theory, Numeral (linguistics), Old Church Slavonic, Old Frisian, Old Irish, Old Norse, Old Persian, One (Harry Nilsson song), One (pronoun), Parity (mathematics), Peano axioms, Pentagonal number, Periodic table, Persian language, Pitcher, PKNA, Planet, Plotinus, Polyethylene terephthalate, Positional notation, Positron, Prime number, Prime-counting function, Principia Mathematica, Probability, PRS One, Punjabi language, Quarterback, Radical 1, Real number, Repeating decimal, Resin identification code, Ring (mathematics), Ring theory, Roman numerals, Root of unity, Rugby league, Rugby union, Sequence, Serif, Set (mathematics), Sindhi language, Singleton (mathematics), Square (algebra), Square-integrable function, Successor function, Super League, Tally marks, Tamil language, Telugu language, Text figures, Thai numerals, Three Dog Night, Triangular number, Triton (moon), Typeface, Unary numeral system, Uniform number (American football), Unit (ring theory), Unit interval, Unit of measurement, Unit vector, Urdu, Vector space, Von Neumann cardinal assignment, Written Chinese, X-height, 0, 0.999..., 10, 100 (number), 1000 (number), 11 (number), 12 (number), 13 (number), 14 (number), 15 (number), 16 (number), 17 (number), 18 (number), 19 (number), 2, 20 (number), 21 (number), 22 (number), 23 (number), 24 (number), 25 (number), 3, 4, 5, 50 (number), 6, 7, 8, 9, 98 (number). Expand index (177 more) » « Shrink index
+1 may refer to.
In mathematics, the absolute value or modulus of a real number is the non-negative value of without regard to its sign.
An ace is a playing card, die or domino with a single pip.
AD 1 (I), 1 AD or 1 CE is the epoch year for the Anno Domini calendar era.
In abstract algebra, an adelic algebraic group is a semitopological group defined by an algebraic group G over a number field K, and the adele ring A.
Adrien-Marie Legendre (18 September 1752 – 10 January 1833) was a French mathematician.
Alan Ford is an Italian comic book created by Max Bunker (Luciano Secchi) and Magnus (Roberto Raviola), in print since 1969.
Aleph (or alef or alif) is the first letter of the Semitic abjads, including Phoenician 'Ālep 𐤀, Hebrew 'Ālef א, Aramaic Ālap 𐡀, Syriac ʾĀlap̄ ܐ, Arabic ا, Urdu ا, and Persian.
Algebra (from Arabic "al-jabr", literally meaning "reunion of broken parts") is one of the broad parts of mathematics, together with number theory, geometry and analysis.
The alkali metals are a group (column) in the periodic table consisting of the chemical elements lithium (Li), sodium (Na), potassium (K),The symbols Na and K for sodium and potassium are derived from their Latin names, natrium and kalium; these are still the names for the elements in some languages, such as German and Russian.
In probability theory, one says that an event happens almost surely (sometimes abbreviated as a.s.) if it happens with probability one.
American football, referred to as football in the United States and Canada and also known as gridiron, is a team sport played by two teams of eleven players on a rectangular field with goalposts at each end.
Arithmetic (from the Greek ἀριθμός arithmos, "number") is a branch of mathematics that consists of the study of numbers, especially the properties of the traditional operations on them—addition, subtraction, multiplication and division.
Artemis Fowl is a series of eight science fiction fantasy novels written by Irish author Eoin Colfer, featuring the criminal mastermind Artemis Fowl II.
Artificial intelligence (AI, also machine intelligence, MI) is intelligence demonstrated by machines, in contrast to the natural intelligence (NI) displayed by humans and other animals.
In typography, an ascender is the portion of a minuscule letter in a Latin-derived alphabet that extends above the mean line of a font.
ASCII, abbreviated from American Standard Code for Information Interchange, is a character encoding standard for electronic communication.
Assamese or Asamiya অসমীয়া is an Eastern Indo-Aryan language spoken mainly in the Indian state of Assam, where it is an official language.
Association football, more commonly known as football or soccer, is a team sport played between two teams of eleven players with a spherical ball.
In mathematical analysis, asymptotic analysis, also known as asymptotics, is a method of describing limiting behavior.
In mathematics, −1 is the additive inverse of 1, that is, the number that when added to 1 gives the additive identity element, 0.
Bani (asomtavruli, nuskhuri, mkhedruli ბ) is the 2nd letter of the three Georgian scripts.
Baseball is a bat-and-ball game played between two opposing teams who take turns batting and fielding.
Benford's law, also called Newcomb-Benford's law, law of anomalous numbers, and first-digit law, is an observation about the frequency distribution of leading digits in many real-life sets of numerical data.
Bengali, also known by its endonym Bangla (বাংলা), is an Indo-Aryan language spoken in South Asia.
A binary code represents text, computer processor instructions, or any other data using a two-symbol system.
In computer science, the Boolean data type is a data type that has one of two possible values (usually denoted true and false), intended to represent the two truth values of logic and Boolean algebra.
Breton (brezhoneg or in Morbihan) is a Southwestern Brittonic Celtic language spoken in Brittany.
The C0 and C1 control code or control character sets define control codes for use in text by computer systems that use the ISO/IEC 2022 system of specifying control and graphic characters.
Calculus (from Latin calculus, literally 'small pebble', used for counting and calculations, as on an abacus), is the mathematical study of continuous change, in the same way that geometry is the study of shape and algebra is the study of generalizations of arithmetic operations.
In mathematics, a category (sometimes called an abstract category to distinguish it from a concrete category) is an algebraic structure similar to a group but without requiring inverse or closure properties.
Category theory formalizes mathematical structure and its concepts in terms of a labeled directed graph called a category, whose nodes are called objects, and whose labelled directed edges are called arrows (or morphisms).
A centered hexagonal number, or hex number, is a centered figurate number that represents a hexagon with a dot in the center and all other dots surrounding the center dot in a hexagonal lattice.
Central Kurdish (کوردیی ناوەندی, Kurdîy nawendî), also called Sorani (سۆرانی, Soranî) is a Kurdish language spoken in Iraq, mainly in Iraqi Kurdistan, as well as the Kurdistan Province and West Azerbaijan Province of western Iran.
Ceres (minor-planet designation: 1 Ceres) is the largest object in the asteroid belt that lies between the orbits of Mars and Jupiter, slightly closer to Mars' orbit.
In mathematics, the characteristic of a ring R, often denoted char(R), is defined to be the smallest number of times one must use the ring's multiplicative identity (1) in a sum to get the additive identity (0) if the sum does indeed eventually attain 0.
Chinese numerals are words and characters used to denote numbers in Chinese.
Christmas is an annual festival commemorating the birth of Jesus Christ,Martindale, Cyril Charles.
The Christmas season, also called the festive season, or the holiday season (mainly in the U.S. and Canada; often simply called the holidays),, is an annually recurring period recognized in many Western and Western-influenced countries that is generally considered to run from late November to early January.
Christmas Eve is the evening or entire day before Christmas Day, the festival commemorating the birth of Jesus.
Christmas traditions vary from country to country.
In mathematics, the circle group, denoted by T, is the multiplicative group of all complex numbers with absolute value 1, that is, the unit circle in the complex plane or simply the unit complex numbers The circle group forms a subgroup of C×, the multiplicative group of all nonzero complex numbers.
Common Era or Current Era (CE) is one of the notation systems for the world's most widely used calendar era – an alternative to the Dionysian AD and BC system.
A complex number is a number that can be expressed in the form, where and are real numbers, and is a solution of the equation.
A composite number is a positive integer that can be formed by multiplying together two smaller positive integers.
A computer is a device that can be instructed to carry out sequences of arithmetic or logical operations automatically via computer programming.
Counting is the action of finding the number of elements of a finite set of objects.
Counting rods are small bars, typically 3–14 cm long, that were used by mathematicians for calculation in ancient East Asia.
Cribbage, or crib, is a card game traditionally for two players, but commonly played with three, four or more, that involves playing and grouping cards in combinations which gain points.
In arithmetic and algebra, the cube of a number is its third power: the result of the number multiplied by itself twice: It is also the number multiplied by its square: This is also the volume formula for a geometric cube with sides of length, giving rise to the name.
Danish (dansk, dansk sprog) is a North Germanic language spoken by around six million people, principally in Denmark and in the region of Southern Schleswig in northern Germany, where it has minority language status.
Data is a set of values of qualitative or quantitative variables.
Devanagari (देवनागरी,, a compound of "''deva''" देव and "''nāgarī''" नागरी; Hindi pronunciation), also called Nagari (Nāgarī, नागरी),Kathleen Kuiper (2010), The Culture of India, New York: The Rosen Publishing Group,, page 83 is an abugida (alphasyllabary) used in India and Nepal.
In dimensional analysis, a dimensionless quantity is a quantity to which no physical dimension is assigned.
Division is one of the four basic operations of arithmetic, the others being addition, subtraction, and multiplication.
The Dutch language is a West Germanic language, spoken by around 23 million people as a first language (including the population of the Netherlands where it is the official language, and about sixty percent of Belgium where it is one of the three official languages) and by another 5 million as a second language.
The Eastern Arabic numerals (also called Arabic–Hindu numerals, Arabic Eastern numerals and Indo–Persian numerals) are the symbols used to represent the Hindu–Arabic numeral system, in conjunction with the Arabic alphabet in the countries of the Mashriq (the east of the Arab world), the Arabian Peninsula, and its variant in other countries that use the Perso-Arabic script in the Iranian plateau and Asia.
Electric charge is the physical property of matter that causes it to experience a force when placed in an electromagnetic field.
In mathematics, an empty product, or nullary product, is the result of multiplying no factors.
Eoin Colfer (born 14 May 1965) is an Irish author of children's books.
Exponentiation is a mathematical operation, written as, involving two numbers, the base and the exponent.
In mathematics, the factorial of a non-negative integer n, denoted by n!, is the product of all positive integers less than or equal to n. For example, The value of 0! is 1, according to the convention for an empty product.
In mathematics, factorization (also factorisation in some forms of British English) or factoring consists of writing a number or another mathematical object as a product of several factors, usually smaller or simpler objects of the same kind.
In mathematics, the Fibonacci numbers are the numbers in the following integer sequence, called the Fibonacci sequence, and characterized by the fact that every number after the first two is the sum of the two preceding ones: Often, especially in modern usage, the sequence is extended by one more initial term: By definition, the first two numbers in the Fibonacci sequence are either 1 and 1, or 0 and 1, depending on the chosen starting point of the sequence, and each subsequent number is the sum of the previous two.
In mathematics, a field is a set on which addition, subtraction, multiplication, and division are defined, and behave as when they are applied to rational and real numbers.
In mathematics, the field with one element is a suggestive name for an object that should behave similarly to a finite field with a single element, if such a field could exist.
The term figurate number is used by different writers for members of different sets of numbers, generalizing from triangular numbers to different shapes (polygonal numbers) and different dimensions (polyhedral numbers).
In mathematics, a finite field or Galois field (so-named in honor of Évariste Galois) is a field that contains a finite number of elements.
Formula One (also Formula 1 or F1) is the highest class of single-seater auto racing sanctioned by the Fédération Internationale de l'Automobile (FIA) and owned by the Formula One Group.
Fullback (or full-back) is one of the positions in a rugby league football team.
In number theory, the fundamental theorem of arithmetic, also called the unique factorization theorem or the unique-prime-factorization theorem, states that every integer greater than 1 either is a prime number itself or can be represented as the product of prime numbers and that, moreover, this representation is unique, up to (except for) the order of the factors.
In number theory, a Gaussian integer is a complex number whose real and imaginary parts are both integers.
Ge'ez (Ge'ez: ግዕዝ), also known as Ethiopic, is a script used as an abugida (alphasyllabary) for several languages of Ethiopia and Eritrea.
In mathematics, a generating function is a way of encoding an infinite sequence of numbers (an) by treating them as the coefficients of a power series.
Georgian (ქართული ენა, translit.) is a Kartvelian language spoken by Georgians.
German (Deutsch) is a West Germanic language that is mainly spoken in Central Europe.
In typography, a glyph is an elemental symbol within an agreed set of symbols, intended to represent a readable character for the purposes of writing.
The goalkeeper, often shortened to keeper or goalie, is one of the major positions of association football.
Gothic is an extinct East Germanic language that was spoken by the Goths.
Greater London is a region of England which forms the administrative boundaries of London, as well as a county for the purposes of the lieutenancies.
Greek (Modern Greek: ελληνικά, elliniká, "Greek", ελληνική γλώσσα, ellinikí glóssa, "Greek language") is an independent branch of the Indo-European family of languages, native to Greece and other parts of the Eastern Mediterranean and the Black Sea.
Greek numerals, also known as Ionic, Ionian, Milesian, or Alexandrian numerals, are a system of writing numbers using the letters of the Greek alphabet.
The Gregorian calendar is the most widely used civil calendar in the world.
In mathematics, a group is an algebraic structure consisting of a set of elements equipped with an operation that combines any two elements to form a third element and that satisfies four conditions called the group axioms, namely closure, associativity, identity and invertibility.
Gujarati (ગુજરાતી) is an Indo-Aryan language native to the Indian state of Gujarat.
The Gupta script (sometimes referred to as Gupta Brahmi Script or Late Brahmi Script)Sharma, Ram.
Harry Edward Nilsson III (June 15, 1941 – January 15, 1994), usually credited as Nilsson, was an American singer-songwriter who achieved the peak of his commercial success in the early 1970s.
The system of Hebrew numerals is a quasi-decimal alphabetic numeral system using the letters of the Hebrew alphabet.
Helium (from lit) is a chemical element with symbol He and atomic number 2.
Hydrogen is a chemical element with symbol H and atomic number 1.
In mathematics, an identity element or neutral element is a special type of element of a set with respect to a binary operation on that set, which leaves other elements unchanged when combined with them.
In linear algebra, the identity matrix, or sometimes ambiguously called a unit matrix, of size n is the n × n square matrix with ones on the main diagonal and zeros elsewhere.
In logic and related fields such as mathematics and philosophy, if and only if (shortened iff) is a biconditional logical connective between statements.
The imaginary unit or unit imaginary number is a solution to the quadratic equation.
The Indian subcontinent is a southern region and peninsula of Asia, mostly situated on the Indian Plate and projecting southwards into the Indian Ocean from the Himalayas.
In category theory, a branch of mathematics, an initial object of a category C is an object I in C such that for every object X in C, there exists precisely one morphism I → X. The dual notion is that of a terminal object (also called terminal element): T is terminal if for every object X in C there exists a single morphism X → T. Initial objects are also called coterminal or universal, and terminal objects are also called final.
An integer (from the Latin ''integer'' meaning "whole")Integer 's first literal meaning in Latin is "untouched", from in ("not") plus tangere ("to touch").
In mathematics, an integral assigns numbers to functions in a way that can describe displacement, area, volume, and other concepts that arise by combining infinitesimal data.
The International Telecommunication Union (ITU; Union Internationale des Télécommunications (UIT)), originally the International Telegraph Union (Union Télégraphique Internationale), is a specialized agency of the United Nations (UN) that is responsible for issues that concern information and communication technologies.
In mathematics, an inverse function (or anti-function) is a function that "reverses" another function: if the function applied to an input gives a result of, then applying its inverse function to gives the result, and vice versa.
January is the first month of the year in the Julian and Gregorian calendars and the first of seven months to have a length of 31 days.
The system of Japanese numerals is the system of number names used in the Japanese language.
Kannada (ಕನ್ನಡ) is a Dravidian language spoken predominantly by Kannada people in India, mainly in the state of Karnataka, and by significant linguistic minorities in the states of Andhra Pradesh, Telangana, Tamil Nadu, Maharashtra, Kerala, Goa and abroad.
Khmer numerals are the numerals used in the Khmer language.
A Kicking specialist or kick specialist and sometimes referred to a "kicker", especially when referring to a placekicker, is a player on American football and Canadian football special teams who performs punts, kickoffs, field goals and/or point after touchdowns.
The Korean language (Chosŏn'gŭl/Hangul: 조선말/한국어; Hanja: 朝鮮말/韓國語) is an East Asian language spoken by about 80 million people.
Latin (Latin: lingua latīna) is a classical language belonging to the Italic branch of the Indo-European languages.
Legendre's constant is a mathematical constant occurring in a formula conjectured by Adrien-Marie Legendre to capture the asymptotic behavior of the prime-counting function \pi(x).
In geometric measurements, length is the most extended dimension of an object.
In geometry, a line segment is a part of a line that is bounded by two distinct end points, and contains every point on the line between its endpoints.
The following highways are numbered 1.
In public transport, Route 1 may refer to.
Lithuanian (lietuvių kalba) is a Baltic language spoken in the Baltic region.
In mathematics, the logarithm is the inverse function to exponentiation.
Lorien Legacies is a series of young adult science fiction books, written by James Frey, Jobie Hughes, and formerly, Greg Boose, under the collective pseudonym Pittacus Lore.
In mathematics, magnitude is the size of a mathematical object, a property which determines whether the object is larger or smaller than other objects of the same kind.
Magnus, meaning "great" in Latin, was sometimes used as a first name among Romans but was not particularly common among them.
Malayalam is a Dravidian language spoken across the Indian state of Kerala by the Malayali people and it is one of 22 scheduled languages of India.
In mathematics, a matrix of ones or all-ones matrix is a matrix over the real numbers where every element is equal to one.
Max Bunker, pen name of Luciano Secchi (born 24 August 1939), is an Italian comic book writer, and publisher, best known as the co-author of Alan Ford.
Measurement is the assignment of a number to a characteristic of an object or event, which can be compared with other objects or events.
A minor planet is an astronomical object in direct orbit around the Sun (or more broadly, any star with a planetary system) that is neither a planet nor exclusively classified as a comet.
In abstract algebra, a branch of mathematics, a monoid is an algebraic structure with a single associative binary operation and an identity element.
Multiplication (often denoted by the cross symbol "×", by a point "⋅", by juxtaposition, or, on computers, by an asterisk "∗") is one of the four elementary mathematical operations of arithmetic; with the others being addition, subtraction and division.
In number theory, a multiplicative function is an arithmetic function f(n) of a positive integer n with the property that f(1).
The National Football League (NFL) is a professional American football league consisting of 32 teams, divided equally between the National Football Conference (NFC) and the American Football Conference (AFC).
The National Hockey League (NHL; Ligue nationale de hockey—LNH) is a professional ice hockey league in North America, currently comprising 31 teams: 24 in the United States and 7 in Canada.
In mathematics, the natural numbers are those used for counting (as in "there are six coins on the table") and ordering (as in "this is the third largest city in the country").
Neoplatonism is a term used to designate a strand of Platonic philosophy that began with Plotinus in the third century AD against the background of Hellenistic philosophy and religion.
Nepali known by endonym Khas-kura (खस कुरा) is an Indo-Aryan language of the sub-branch of Eastern Pahari.
The National Football League preseason is the period each year during which NFL teams play several not-for-the-record exhibition games before the actual "championship" or "regular" season starts.
New Year is the time or day at which a new calendar year begins and the calendar's year count increments by one.
New Year's Day, also called simply New Year's or New Year, is observed on January 1, the first day of the year on the modern Gregorian calendar as well as the Julian calendar.
In the Gregorian calendar, New Year's Eve (also known as Old Year's Day or Saint Sylvester's Day in many countries), the last day of the year, is on 31 December which is the seventh day of Christmastide.
In linear algebra, functional analysis, and related areas of mathematics, a norm is a function that assigns a strictly positive length or size to each vector in a vector space—save for the zero vector, which is assigned a length of zero.
The North American Numbering Plan (NANP) is a telephone numbering plan that encompasses 25 distinct regions in twenty countries primarily in North America, including the Caribbean and the U.S. territories.
A number is a mathematical object used to count, measure and also label.
Number theory, or in older usage arithmetic, is a branch of pure mathematics devoted primarily to the study of the integers.
In linguistics, a numeral is a member of a part of speech characterized by the designation of numbers; some examples are the English word 'two' and the compound 'seventy-seventh'.
Old Church Slavonic, also known as Old Church Slavic (or Ancient/Old Slavonic often abbreviated to OCS; (autonym словѣ́ньскъ ѩꙁꙑ́къ, slověnĭskŭ językŭ), not to be confused with the Proto-Slavic, was the first Slavic literary language. The 9th-century Byzantine missionaries Saints Cyril and Methodius are credited with standardizing the language and using it in translating the Bible and other Ancient Greek ecclesiastical texts as part of the Christianization of the Slavs. It is thought to have been based primarily on the dialect of the 9th century Byzantine Slavs living in the Province of Thessalonica (now in Greece). It played an important role in the history of the Slavic languages and served as a basis and model for later Church Slavonic traditions, and some Eastern Orthodox and Eastern Catholic churches use this later Church Slavonic as a liturgical language to this day. As the oldest attested Slavic language, OCS provides important evidence for the features of Proto-Slavic, the reconstructed common ancestor of all Slavic languages.
Old Frisian is a West Germanic language spoken between the 8th and 16th centuries in the area between the Rhine and Weser on the European North Sea coast.
Old Irish (Goídelc; Sean-Ghaeilge; Seann Ghàidhlig; Shenn Yernish; sometimes called Old Gaelic) is the name given to the oldest form of the Goidelic languages for which extensive written texts are extant.
Old Norse was a North Germanic language that was spoken by inhabitants of Scandinavia and inhabitants of their overseas settlements from about the 9th to the 13th century.
Old Persian is one of the two directly attested Old Iranian languages (the other being Avestan).
"One" is a song written by Harry Nilsson and made famous by Three Dog Night whose recording reached number five on the U.S. ''Billboard'' Hot 100 in 1969 and number four in Canada.
One is a pronoun in the English language.
In mathematics, parity is the property of an integer's inclusion in one of two categories: even or odd.
In mathematical logic, the Peano axioms, also known as the Dedekind–Peano axioms or the Peano postulates, are axioms for the natural numbers presented by the 19th century Italian mathematician Giuseppe Peano.
A pentagonal number is a figurate number that extends the concept of triangular and square numbers to the pentagon, but, unlike the first two, the patterns involved in the construction of pentagonal numbers are not rotationally symmetrical.
The periodic table is a tabular arrangement of the chemical elements, ordered by their atomic number, electron configuration, and recurring chemical properties, whose structure shows periodic trends.
Persian, also known by its endonym Farsi (فارسی), is one of the Western Iranian languages within the Indo-Iranian branch of the Indo-European language family.
In baseball, the pitcher is the player who throws the baseball from the pitcher's mound toward the catcher to begin each play, with the goal of retiring a batter, who attempts to either make contact with the pitched ball or draw a walk.
PKNA - Paperinik New Adventures is an Italian comic, published by Disney Italy from 14 March 1996 to 20 December 2000, about the new adventures of Paperinik, the superhero created in 1969 by Guido Martina, Elisa Penna and Giovan Battista Carpi, which served as Donald Duck's secret identity.
A planet is an astronomical body orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity, is not massive enough to cause thermonuclear fusion, and has cleared its neighbouring region of planetesimals.
Plotinus (Πλωτῖνος; – 270) was a major Greek-speaking philosopher of the ancient world.
Polyethylene terephthalate (sometimes written poly(ethylene terephthalate)), commonly abbreviated PET, PETE, or the obsolete PETP or PET-P, is the most common thermoplastic polymer resin of the polyester family and is used in fibres for clothing, containers for liquids and foods, thermoforming for manufacturing, and in combination with glass fibre for engineering resins.
Positional notation or place-value notation is a method of representing or encoding numbers.
The positron or antielectron is the antiparticle or the antimatter counterpart of the electron.
A prime number (or a prime) is a natural number greater than 1 that cannot be formed by multiplying two smaller natural numbers.
In mathematics, the prime-counting function is the function counting the number of prime numbers less than or equal to some real number x. It is denoted by (x) (unrelated to the number pi).
The Principia Mathematica (often abbreviated PM) is a three-volume work on the foundations of mathematics written by Alfred North Whitehead and Bertrand Russell and published in 1910, 1912, and 1913.
Probability is the measure of the likelihood that an event will occur.
The PRS One is a German single-place paraglider that was produced by Pilots Right Stuff (PRS) of Brannenburg, starting in 2000.
Punjabi (Gurmukhi: ਪੰਜਾਬੀ; Shahmukhi: پنجابی) is an Indo-Aryan language spoken by over 100 million native speakers worldwide, ranking as the 10th most widely spoken language (2015) in the world.
A quarterback (commonly abbreviated "QB") is a position in American and Canadian football.
Radical 1 meaning "one" is 1 of 6 Kangxi radicals (214 radicals total) composed of 1 stroke.
In mathematics, a real number is a value of a continuous quantity that can represent a distance along a line.
A repeating or recurring decimal is decimal representation of a number whose digits are periodic (repeating its values at regular intervals) and the infinitely-repeated portion is not zero.
The ASTM International Resin Identification Coding System, often abbreviated as the RIC, is a set of symbols appearing on plastic products that identify the plastic resin out of which the product is made.
In mathematics, a ring is one of the fundamental algebraic structures used in abstract algebra.
In algebra, ring theory is the study of rings—algebraic structures in which addition and multiplication are defined and have similar properties to those operations defined for the integers.
The numeric system represented by Roman numerals originated in ancient Rome and remained the usual way of writing numbers throughout Europe well into the Late Middle Ages.
In mathematics, a root of unity, occasionally called a de Moivre number, is any complex number that gives 1 when raised to some positive integer power.
Rugby league football is a full-contact sport played by two teams of thirteen players on a rectangular field.
Rugby union, commonly known in most of the world as rugby, is a contact team sport which originated in England in the first half of the 19th century.
In mathematics, a sequence is an enumerated collection of objects in which repetitions are allowed.
In typography, a serif is a small line attached to the end of a stroke in a letter or symbol.
In mathematics, a set is a collection of distinct objects, considered as an object in its own right.
Sindhi (سنڌي, सिन्धी,, ਸਿੰਧੀ) is an Indo-Aryan language of the historical Sindh region, spoken by the Sindhi people.
In mathematics, a singleton, also known as a unit set, is a set with exactly one element.
In mathematics, a square is the result of multiplying a number by itself.
In mathematics, a square-integrable function, also called a quadratically integrable function, is a real- or complex-valued measurable function for which the integral of the square of the absolute value is finite.
In mathematics, the successor function or successor operation is a primitive recursive function S such that S(n).
Super League (currently known as the Betfred Super League for sponsorship reasons) is the top-level professional rugby league club competition in the Northern hemisphere.
Tally marks, also called hash marks, are a unary numeral system.
Tamil (தமிழ்) is a Dravidian language predominantly spoken by the Tamil people of India and Sri Lanka, and by the Tamil diaspora, Sri Lankan Moors, Burghers, Douglas, and Chindians.
Telugu (తెలుగు) is a South-central Dravidian language native to India.
Text figures (also known as non-lining, lowercase, old style, ranging, hanging, medieval, billing, or antique figures or numerals) are numerals typeset with varying heights in a fashion that resembles a typical line of running text, hence the name.
Thai numerals (เลขไทย, IPA) are a set of numerals traditionally used in Thailand, although the Arabic numerals are more common due to pervasive westernization of Thailand in the modern Rattanakosin Era.
Three Dog Night is an American rock band.
A triangular number or triangle number counts objects arranged in an equilateral triangle, as in the diagram on the right.
Triton is the largest natural satellite of the planet Neptune, and the first Neptunian moon to be discovered.
In typography, a typeface (also known as font family) is a set of one or more fonts each composed of glyphs that share common design features.
The unary numeral system is the bijective base-1 numeral system.
Uniform numbers in American football are unusual compared to those in other sports.
In mathematics, an invertible element or a unit in a (unital) ring is any element that has an inverse element in the multiplicative monoid of, i.e. an element such that The set of units of any ring is closed under multiplication (the product of two units is again a unit), and forms a group for this operation.
In mathematics, the unit interval is the closed interval, that is, the set of all real numbers that are greater than or equal to 0 and less than or equal to 1.
A unit of measurement is a definite magnitude of a quantity, defined and adopted by convention or by law, that is used as a standard for measurement of the same kind of quantity.
In mathematics, a unit vector in a normed vector space is a vector (often a spatial vector) of length 1.
Urdu (اُردُو ALA-LC:, or Modern Standard Urdu) is a Persianised standard register of the Hindustani language.
A vector space (also called a linear space) is a collection of objects called vectors, which may be added together and multiplied ("scaled") by numbers, called scalars.
The von Neumann cardinal assignment is a cardinal assignment which uses ordinal numbers.
Written Chinese comprises Chinese characters (汉字/漢字; pinyin: Hànzì, literally "Han characters") used to represent the Chinese language.
In typography, the x-height or corpus size is the distance between the baseline and the mean line of lower-case letters in a typeface.
0 (zero) is both a number and the numerical digit used to represent that number in numerals.
In mathematics, 0.999... (also written 0., among other ways), denotes the repeating decimal consisting of infinitely many 9s after the decimal point (and one 0 before it).
10 (ten) is an even natural number following 9 and preceding 11.
100 or one hundred (Roman numeral: Ⅽ) is the natural number following 99 and preceding 101.
1000 or one thousand is the natural number following 999 and preceding 1001.
11 (eleven) is the natural number following 10 and preceding 12.
12 (twelve) is the natural number following 11 and preceding 13.
13 (thirteen) is the natural number following 12 and preceding 14.
14 (fourteen) is a natural number following 13 and succeeded by 15.
15 (fifteen) is a number, numeral, and glyph.
16 (sixteen) is the natural number following 15 and preceding 17.
17 (seventeen) is the natural number following 16 and preceding 18.
18 (eighteen) is the natural number following 17 and preceding 19.
19 (nineteen) is the natural number following 18 and preceding 20.
2 (two) is a number, numeral, and glyph.
20 (twenty) is the natural number following 19 and preceding 21.
2018 has been designated as the third International Year of the Reef by the International Coral Reef Initiative.
2019 (MMXIX) will be a common year starting on Tuesday of the Gregorian calendar, the 2019th year of the Common Era (CE) and Anno Domini (AD) designations, the 19th year of the 3rd millennium, the 19th year of the 21st century, and the 10th and last year of the 2010s decade.
21 (twenty-one) is the natural number following 20 and preceding 22.
22 (twenty-two) is the natural number following 21 and preceding 23.
23 (twenty-three) is the natural number following 22 and preceding 24.
24 (twenty-four) is the natural number following 23 and preceding 25.
25 (twenty-five) is the natural number following 24 and preceding 26.
3 (three) is a number, numeral, and glyph.
4 (four) is a number, numeral, and glyph.
5 (five) is a number, numeral, and glyph.
50 (fifty) is the natural number following 49 and preceding 51.
6 (six) is the natural number following 5 and preceding 7.
7 (seven) is the natural number following 6 and preceding 8.
8 (eight) is the natural number following 7 and preceding 9.
9 (nine) is the natural number following and preceding.
98 (ninety-eight) is the natural number following 97 and preceding 99.
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