Submitted by Fred Bolder - February 5, 2007
Does picture 1a means the same as picture 1b? If no, what is the difference?
Does the length of the vertical bows matter for the pictures 1a, 1c and 1d?
In other words:
Does picture 2a mean the same as picture 2b? If no, what is the difference?
In circular path examples I have never seen both forward as well as side movements. Is picture 2b a correct notation?