three decimal places
11Approximations of π — Timeline of approximations for pi …
12Pi — This article is about the number. For the Greek letter, see Pi (letter). For other uses, see Pi (disambiguation). The circumference of a ci …
13Numerical approximations of π — This page is about the history of numerical approximations of the mathematical constant pi;. There is a summarizing table at chronology of computation of pi;. See also history of pi; for other aspects of the evolution of our knowledge about… …
14Methods of computing square roots — There are several methods for calculating the principal square root of a nonnegative real number. For the square roots of a negative or complex number, see below. Contents 1 Rough estimation 2 Babylonian method 2.1 Example …
15Abū Rayhān Bīrūnī — Infobox Muslim scholars | era = Matthew Deal image caption = Biruni on a 1973 Iranian post stamp commemorating his one thousandth anniversary | name = Abū Rayhān Muhammad ibn Ahmad Bīrunī title= Abu Rayhan Biruni birth = 15 September 973 AD|… …
16Lorenz , Edward Norton — (1917–) American meteorologist Born in West Hartford, Connecticut, Lorenz was educated at Dartmouth College, New Hampshire, at Harvard, and at the Massachusetts Institute of Technology. He joined the MIT faculty in 1946 and served as professor of …
17Outline of Norway — The …
18History of geography — This article explores the history of geography.Ancient geographyAncient Greeks environment influenced on the ways people met their needs and the way their culture develops.The ancient Greeks saw the poet Homer as the founder of geography. His… …
19Minute of arc — This article is about geometry. For firearms terminology, see Minute of Angle. A minute of arc, arcminute, or minute of angle (MOA), is a unit of angular measurement equal to one sixtieth (1⁄60) of one degree. In turn, a second of arc or… …
20Indian numbering system — The Indian numbering system, used today in India, Pakistan, Bangladesh, Nepal and Myanmar (Burma), is based on grouping by two decimal places, rather than the three decimal places commonplace in most parts of the world. This system of measurement …
