Abstract
The United States Coast and Geodetic Survey makes effective use of electronic computers in its surveying and mapping activities, the most extensive application being in adjustment of triangulation. The paper discusses the programs used to determine the final values, with emphasis on their application to the time-consuming solution of a network of normal equations. Brigadier Martin Hotine’s three-dimensional technique for adjusting triangulation has been programmed and studies are continuing in its general application. Another computer application in progress is the photogrammetric adjustment of a strip of photos by a cantilever method. At the present time a complete analytical treatment is being programmed.
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