Up to now I was used to denote vectors by bold italic symbols and matrices by upright bold symbols. Now that I learned that by the norm ISO-80000 also matrices should be written using italic letters, I am wondering what might be the best way to distinguish these quantities. Normally matrices and vectors are denoted by capital and lower case letters, respectively. But in my case I need to use also capital letters for vectors (in body coordinates) and lower-case letters for matrices (infinitesimal rotation matrices in space coordinates). Another possibility would be to use greek letters for quantities in body coordinates. But several capital greek letters look identical to their latin counterparts and I would not like to frighten the undergraduate students. I would also like to avoid additional left or right sub- or superscripts.
For the slides I had also some trouble with designing \Omega matrices and their corresponsing vectors, because I didn't yet manage to find bold italic greek letters; so at the moment I simply use blue symbols for these.
I would be happy about all suggestions; for this semester I will probably stick with my old convention in order to avoid too much confusion.
With kind regards
Alois