called-number signs

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• Number sign — Not to be confused with the Chinese character 井, or the Sharp sign ♯. # Number sign …   Wikipedia

• number symbolism — Introduction       cultural associations, including religious, philosophic, and aesthetic, with various numbers.       Humanity has had a love hate relationship with numbers from the earliest times. Bones dating from perhaps 30,000 years ago show …   Universalium

• Number theory — A Lehmer sieve an analog computer once used for finding primes and solving simple diophantine equations. Number theory is a branch of pure mathematics devoted primarily to the study of the integers. Number theorists study prime numbers (the… …   Wikipedia

• number theory — Math. the study of integers and their relation to one another. Also called theory of numbers. [1910 15] * * * Branch of mathematics concerned with properties of and relations among integers. It is a popular subject among amateur mathematicians… …   Universalium

• SIGNS AND SYMBOLS — A sign, in biblical Hebrew ʾot, is a mark, an object, or an event conveying some particular meaning. A sign is called mofet ( portent ) when it is portentous or   marvelous in character. Symbols constitute a special category of signs. They are… …   Encyclopedia of Judaism

• Number Eight (Battlestar Galactica) — This article is about the characters from the reimagining of Battlestar Galactica; for the original characters, see Lieutenant Boomer and Lieutenant Athena. Number Eight Sharon Boomer Valerii Sharon Athena Agathon Battlestar Galactica character …   Wikipedia

• Signs and symptoms of Parkinson's disease — Illustration of the Parkinson disease by Sir William Richard Gowers from A Manual of Diseases of the Nervous System in 1886 showing the characteristic posture of PD patients Signs and symptoms of Parkinson s disease are varied. Parkinson s… …   Wikipedia

• Surreal number — In mathematics, the surreal number system is an arithmetic continuum containing the real numbers as well as infinite and infinitesimal numbers, respectively larger or smaller in absolute value than any positive real number. The surreals share… …   Wikipedia

• Vinča signs — The Vinča signs, also known as the Vinča alphabet, Vinča Turdaş script, or Old European script, are a set of symbols found on prehistoric artifacts from southeastern Europe. A few scholars believe they constitute a writing system of the Vinča… …   Wikipedia

• roads and road signs — The US road system is the largest in the world, mainly because of the long distances between cities. The distance between Boston and San Francisco, for instance, is more than 3 000 miles (4 827 kilometres). The US began to build the interstate… …   Universalium

• 999 (emergency telephone number) — A sign on a beach in Whitstable, United Kingdom, advising readers to dial 999 in the event of an emergency 999 is an official emergency telephone number in a number of countries which allows the caller to contact emergency services for urgent… …   Wikipedia