From point coordinates and polar measurements all possible quantities are computed. Computation rules between these quantities are set up and consecutively applied until no new values are obtained. This is done in any possible way. By this procedure you often get many different results, which can be compared to detect gross errors. In this case the medians of the computed values represent the results of a robust estimation.Did you know?
Multiple stations in one measurement list are separated by a separating row,
which is recognized by the first printable character being neither digit nor letter.