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Course angle and the distance between the two points on loxodrome (rhumb line).
Calculation of a distance on loxodrome (rhumb line) and course angle (azimuth) between two points with a given geographical coordinates.
Course angles and distance between the two points on the orthodrome(great circle)
Calculates the distance between two points of the Earth specified geodesic (geographical) coordinates along the shortest path - the great circle (orthodrome). Calculates the initial and final course angles and azimuth at intermediate points between the two given.
Distance through the Earth
This calculator calculates the distance from one point on the Earth to another point, going through the Earth, instead of going across the surface.
Conversion between Gauss planar rectangular coordinates and geographic coordinates and vice versa
The page contains online calculators for converting from geographic coordinates to Gauss planar rectangular coordinates and back (the formulas for the Krasovsky reference ellipsoid are used).
Calculation of elevation from horizontal distance and inclination angle with allowance for measurement error
This online calculator allows you to calculate the elevation from horizontal distance and inclination angle taking into account the mean square errors of measurements.
Linear intersection
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