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For evaluating of reductions of horizontal and zenith angles,
gama-local computes a helper point P_1 in the center of
the network. Horizontal and zenith angles observed at point P_2
are transformed to the projection plane perpendicular to the normal
z_1 of the helper point P_1. Coordinates (x_2,
y_2) of point P_2 are conserved, but its normal z_2 is
rotated by the central angle 2\gamma_12 to be parallel with
Formulas for reductions of horizontal and zenith angles are given only in the printed version.
This document was generated by Ales Cepek on March 25, 2014 using texi2html 1.82.