unlike fractions
41Calculator — For mechanical precursors to the modern calculator, see mechanical calculator. For other uses, see Calculator (disambiguation). An electronic pocket calculator with a 7‑segment LCD display, that can perform basic arithmetic operations …
42History of mathematics — A proof from Euclid s Elements, widely considered the most influential textbook of all time.[1] …
431 (number) — One redirects here. For other uses, see 1 (disambiguation). 1 −1 0 1 2 3 4 5 6 7 8 9 → List of numbers Integers …
44Pell's equation — is any Diophantine equation of the form:x^2 ny^2=1,where n is a nonsquare integer and x and y are integers. Trivially, x = 1 and y = 0 always solve this equation. Lagrange proved that for any natural number n that is not a perfect square there… …
45Sexagesimal — (base sixty) is a numeral system with sixty as the base. It originated with the ancient Sumerians in the 2000s BC, was transmitted to the Babylonians, and is still used in modified form for measuring time, angles, and geographic coordinates.The… …
46Metrication in the United States — U.S. shampoo label, with round metric quantity taking secondary status next to non integer U.S …
47Pakistan — /pak euh stan , pah keuh stahn /, n. 1. Islamic Republic of, a republic in S Asia, between India and Afghanistan: formerly part of British India; known as West Pakistan from 1947 71 to distinguish it from East Pakistan (now Bangladesh).… …
48Spain — /spayn/, n. a kingdom in SW Europe. Including the Balearic and Canary islands, 39,244,195; 194,988 sq. mi. (505,019 sq. km). Cap.: Madrid. Spanish, España. * * * Spain Introduction Spain Background: Spain s powerful world empire of the 16th and… …
49Albrecht Dürer — The title of this article contains the character ü. Where it is unavailable or not desired, the name may be represented as Albrecht Duerer. Albrecht Dürer Self Portrait (1500) by Albrecht Dürer …
50Graphite — For other uses, see Graphite (disambiguation). Graphite Graphite specimen General Category Native element mineral …
