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numeral

(Encyclopedia) numeral, symbol denoting anumber. The symbol is a member of a family of marks, such as letters, figures, or words, which alone or in a group represent the members of a numeration…

Flashcards Explained

Math Flashcards Addition Subtraction Multiplication Division Addition & Subtraction Terms Used in Addition Terms Used in Subtraction Terms Used in Multiplication Terms…

Fibonacci, Leonardo

(Encyclopedia) Fibonacci, LeonardoFibonacci, Leonardolāōnärˈdō fēbōnätˈchē [key], b. c.1170, d. after 1240, Italian mathematician, known also as Leonardo da Pisa. In Liber abaci (1202, 2d ed. 1228),…

Novikov, Nikolai Ivanovich

(Encyclopedia) Novikov, Nikolai IvanovichNovikov, Nikolai Ivanovichnyĭkəlīˈ ēväˈnəvĭch nôˈvēkəf [key], 1744–1818, Russian journalist and publisher. In 1769, with the Drone, he started the vogue of…

Brahmagupta

(Encyclopedia) BrahmaguptaBrahmaguptabräˌməg&oobreve;pˈtə [key], c.598–c.660, Indian mathematician and astronomer. He was among the first to meaningfully discuss the concepts of zero and of…

seraph

(Encyclopedia) seraphseraphsĕrˈəf [key], plural seraphimseraph–ĭm [key], supernatural being. The name seems to derive from the Hebrew word “to burn.” According to the Book of Isaiah, seraphim have…

Comanche

(Encyclopedia) ComancheComanchekəmănˈchē [key], Native North Americans belonging to the Shoshonean group of the Uto-Aztecan branch of the Aztec-Tanoan linguistic stock (see Native American languages…

group

(Encyclopedia) group, in mathematics, system consisting of a set of elements and a binary operation a∘b defined for combining two elements such that the following requirements are satisfied: (1) The…

octane number

(Encyclopedia) octane number, figure of merit representing the resistance of gasoline to premature detonation when exposed to heat and pressure in the combustion chamber of an internal-combustion…