Strict formulas are derived for the successive calculation of the correlate when the simple geodesic chains are equalized with the tridiagonal matrix of the coefficients of the normal equations. Integer numbers are used, defined by a recursive equation of the higher order.
1. Lavrov G. F. Uravnivanie i ocenka tochnosti geodezicheskih cepe,-, _ «Geodezija, kartografija i ajerofotos#emka», 1966, vyp. 4.