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A small phone book as a hash table. In computer science, a hash table is a data structure that implements an associative array, also called a dictionary or simply map; an associative array is an abstract data type that maps keys to values. [3]
Cadastral map from 1827 in Austria (Franziszeischer Kataster ) A modern cadastral map for Eastern England. A cadastre or cadaster (/ k ə ˈ d æ s t ə r / kə-DAS-tər) is a comprehensive recording of the real estate or real property's metes-and-bounds of a country. [1] [2] Often it is represented graphically in a cadastral map.
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In that case, a and b are π / 2 − φ 1,2 (that is, the, co-latitudes), C is the longitude separation λ 2 − λ 1, and c is the desired d / R . Noting that sin( π / 2 − φ) = cos(φ), the haversine formula immediately follows. To derive the law of haversines, one starts with the spherical law of cosines:
Elevation or altitude above sea level is a standard measurement for: Geographic locations such as towns, mountains and other landmarks.; The top of buildings and other structures.
The name of the airport was reported to be a suggestion from the people of Karo to the government and later granted by the Ministry of Transportation. [6] The name consists of two words: 'Kuala,' a Malay and Indonesian word for 'river mouth;' [7] and 'Namu' or 'Namo,' the Karonese for 'deep sea.' [8] Thus, 'Kualanamu' means 'meeting point.' [6] Kualanamu is one of the very few airports in the ...
A contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes. [4] The contour interval of a contour map is the difference in elevation between successive contour lines. [5] The gradient of the function is always perpendicular to the contour ...
Heat map generated from DNA microarray data reflecting gene expression values in several conditions A heat map showing the RF coverage of a drone detection system. A heat map (or heatmap) is a 2-dimensional data visualization technique that represents the magnitude of individual values within a dataset as a color.