-for each element. Each line holds indices of nodes forming an element.
-Index n refers to the node described on the n-th line of section 2.
-The first node index is zero. There must be 3 or 4 indices on each
-line for a 2D pattern (only 2d elements are allowed) and 4, 5, 6 or 8
-indices for a 3D pattern (only 3d elements are allowed).
+ for each element. Each line holds indices of nodes forming an element.
+ Index n refers to the node described on the n-th line of section 2.
+ The first node index is zero. There must be 3 or 4 indices on each
+ line for a 2D pattern (only liner 2d elements are allowed) and 4, 5, 6 or 8
+ indices for a 3D pattern (only linear 3d elements are allowed).