法方程式的解算是平差計算中最繁重的部份。为了減少法方程式的数目,一般采用克吕格分組平差法,將条件方程式分为兩组,首先解算第一組方程式,求出第一组改正数后,再改化第二组方程式,然后解算之。而类似于应用史賴伯第一法則的方法,亦是在这一基础上进行的并且其結果相同。所不同者,是在第二组方程式的处理上。前者需要进行全部系数的改化,而后者仅增加少量的乘法,对全部系数的改化工作可以省掉,因而在计算上应用类似于史賴伯第一法則的方法,較之尤为簡捷。本文就如何应用类似于史賴伯第一法则的方法处 The solution to the equation is the heaviest part of the adjustment calculation. In order to reduce the number of the normal equations, the Kriging grouping adjustment method is generally adopted. The conditional equations are divided into two groups. First, the first group of equations is solved, and after the first group of correction numbers is obtained, the second group of equations is modified, Then solve it. And similar to the application of the first rule of Strabo’s method is also based on this and its results are the same. The difference is in the second set of equations to deal with. The former requires all the coefficients to be modified, while the latter only adds a small amount of multiplication, which can be saved for all the coefficients. Therefore, it is simpler to apply a method similar to the Shrikes first rule in computation. This article on how to apply similar to the first rule of Shreb approach