coordinate grid
121graph — /graf, grahf/, n. 1. a diagram representing a system of connections or interrelations among two or more things by a number of distinctive dots, lines, bars, etc. 2. Math. a. a series of points, discrete or continuous, as in forming a curve or… …
122United States — a republic in the N Western Hemisphere comprising 48 conterminous states, the District of Columbia, and Alaska in North America, and Hawaii in the N Pacific. 267,954,767; conterminous United States, 3,022,387 sq. mi. (7,827,982 sq. km); with… …
123Ordnance Survey — Welsh: Arolwg Ordnans Non ministerial government department overview Formed 1791 ( …
124Computer-assisted dispatch — The central idea is that persons in a dispatch center are able to easily view and understand the status of all units being dispatched. CAD provides displays and tools so that the dispatcher has an opportunity to handle calls for service as… …
125Taxicab geometry — versus Euclidean distance: In taxicab geometry all three pictured lines (red, blue, and yellow) have the same length (12) for the same route. In Euclidean geometry, the green line has length 6×√2 ≈ 8.48, and is the unique shortest path …
126Courant–Friedrichs–Lewy condition — In mathematics, the Courant–Friedrichs–Lewy condition (CFL condition) is a necessary condition for convergence while solving certain partial differential equations (usually hyperbolic PDEs) numerically by the method of finite differences.[1] It… …
127HEALPix — (sometimes written as Healpix), an acronym for Hierarchical Equal Area isoLatitude Pixelisation of a 2 sphere, can refer to either an algorithm for pixelisation of the 2 sphere, an associated software package, [http://healpix.jpl.nasa.gov/… …
128High Capacity Color Barcode — An example of a High Capacity Color Barcode: a Microsoft Tag referring to the HCCB article on the English Wikipedia High Capacity Color Barcode (HCCB) is the name coined by Microsoft for its technology of encoding data in a 2D barcode using… …
