This script is able to calculate angle between planes, directions of different crystal system. It also can calculate cross-product of two vectors. This can also be used to calculate experimental tilt angle between two poles. This is very useful script for crystallographers. In this script only four out of seven crystal system and few very well known materials has been included, but one can easily extend this to for many other materials and the remaining three crystal systems.
Just I removed an error which was in BiTe3 section