Project together. a new GUI about triangle solver

[Arno K]

I wrote something similar for every programmable calculator I owned, that makes about 5 different operating systems and I always found it more convenient to do some of the calculations by hand when needed instead of including endless lines with multiply cases in that program, perhaps because I usually deal with pupils in my helping school, perhaps because I think that things easily done by hand shall be done by hand. For quick checking of results these angles and sides thing always was (and will be ) enough.
Arno