CHECKING REDUCTION OF NORMAL EQUATIONS

Abstract

The method of checking reduction of normal equations which will be described below was first devised by the present writer when he had to adjust in one set the whole of the Southern Block of the Major Triangulation of Palestine, involving 114 equations of condition. This method. proved to be so useful and. efficient that, when subsequently adjusting the Northern Block of the same network (117 condition equations in simultaneous adjustment), the advisability of its application was obvious. Finally, in war time, the adjustment in one set of 65 condition equations of the Northern part of the Transjordan Primary Triangulation observed by the Army, equally underwent self-checking by the same method and proved a complete Success.