Hp 50g Math question: Intersection of 2 triangulars

[peacecalc]

Hello Han

the notation from this article is really bad. In a first overview they represent the problem in an such ugly way, so that is no wonder that they need a lot of pages for solving this.

When my program is ready, I will publish it here in that forum. The mathematics the problem needs is secondary II level (in germany, maybe highschool level in USA) in schools.
I never thought to work on university level. Although your solution Han, included a generalization for more dimensions as three.