This type of results data is entered using routines DIGXH and DIGXD. For each element; routine DIGXH is called once only, and routine DIGXD is called once for each Gauss point at each surface. The number of Gauss points is the inner repeat, and the number of surfaces is the outer repeat when calling routine DIGXD. The Gauss point co-ordinates for this dataset are entered in a separate dataset (see next section).