with As [A] the k and the corresponding v and V values may be computed 
with formulas (33), (34) and (16). 
However, it appears to be more advisable to compute the coordinates of 
model points with such computational steps, as outlined in Chapter IV, E. of 
this report. Such an &pproach appears to be especially suited because the 
corresponding computational means must be included in the golution anyway, in 
order to provide the first approximation values for the coordinates of the 
model, which are necessary for starting the initial iteration cycle, 
The setting up of the observational equations (15) or (19) requires 
computing the coefficients of the matrix of the unknown parameter corrections 
and of the residuals. All coefficients are obtained by partial differenti- 
ation of the formulas (12). The linearization procedure is accomplished by 
applying the Taylor series and neglecting second and higher order terms. 
Therefore, an iteratiye procedure must be provided in the computation, whereby, 
the results of each cycle are introduced as approximate values to the folloy- 
ing cycle. The iteration is repeated until the solution has converged to a 
. pre-established accuracy level. 
We now introduce the following computational auxiliaries: 
ig x9. X? 
Q- — 
Ay 
ey. i