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Geodetic datum
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== External links == {{wiktionary|datum}} * [https://geographiclib.sourceforge.io GeographicLib] includes a utility CartConvert which converts between geodetic and geocentric ([[ECEF]]) or local Cartesian (ENU) coordinates. This provides accurate results for all inputs including points close to the center of Earth. * [http://www.mathworks.com/matlabcentral/fileexchange/15285-geodetic-toolbox A collection of geodetic functions that solve a variety of problems in geodesy in Matlab]. *[http://www.ngs.noaa.gov/faq.shtml#WhatDatum NGS FAQ – What is a geodetic datum?] *[http://kartoweb.itc.nl/geometrics/Reference%20surfaces/body.htm About the surface of the Earth] on [http://kartoweb.itc.nl kartoweb.itc.nl] {{DEFAULTSORT:Geodetic System}} [[Category:Geodetic datums| ]] [[es:Sistema de referencia geodésico]] [[zh:大地测量系统]]
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