OOF2: The Manual
Element3 — 3 cornered finite elements.
Various kinds of 3 cornered finite elements. Different types have different numbers of function and mapping nodes.
T3_3: Isoparametric 3 noded triangle with linear interpolation for both fields and positions.
T3_6: Subparametric 6 noded triangle with linear interpolation for positions and quadratic interpolation for fields
T6_6: Isoparametric 6 noded triangle with quadratic interpolation for both positions and fields