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Geodesy based library (geodetic and geocentric functions)
geoStarsLib has functions for dealing with many geodesy-based problems found in positioning, pointing, and surveying situations. It is useful to determine absolute position on the earth, pointing vectors, coordinate transformations, and other functions.
fGPS is a code system that provides both latitude and longitude in a simple alfanumeric system that is easier to input in GPS devices, and easier to provide by phone or sms than standard coordinate systems.
Integra is more than a function plotter. It evaluates expressions and creates dynamic 2D and rotatable 3D plots in a polar or cartesian coordinate system. Other features are integration, differentiation, various functions, ...