This is the n-body formula found at wikipedia:

The variables are defined as follows:

where are constants representing the masses of ''n'' point-masses, are 3-dimensional vector functions of the time variable ''t''

My main question is whether the "q" variables, defined as the "3-dimensional vector functions of the time variable ''t''" are position variables or velocity variables. It looks like we're talking about a velocity but I am not totally sure.