Folks,
I enclose a small python program that I wrote today, which allowed me to check my understanding of how to convert Euler Angles into a Direction Cosine Matrix (a rotation matrix).There is a small
demonstration video here.
It's a very simple program, and unfortunately I had to use the visual python coordinate reference system rather than the UDB aviation coordinate reference system. So I had to re-work some of the maths for visual python.
But despite that, I though it might be of use to someone else in the future, so I'm posting it here.
Best wishes, Pete