One of the better articles I found about this topic when I've been learning for my exam:
http://sebastianruder.com/optimizing-gradient-descent/index....
142 karma · joined June 10, 2016
A term has ~15 weeks with 4 hours per week.
The exercises are not included in this - so I think 100-150 hours should suffice.
I had the impression that this was the epitome of the way of thinking thought in a physics degree.