lecture notes week 1 motion of particles
File in which the problem appears
Molecular Dynamics simulation of Argon - Lecture notes - Week 1
Problematic sentence
(a little reminder: when we have a... ...we have ∇U(r)=dU/dr * \textbf{x}/r)
Correct version
(a little reminder: when we have a... ...we have ∇U(r)=dU/dr * \textbf{r}/r) Because you're talking about the unit vector in the direction of the difference vector Maybe it's meant well but I found it confusing since you also use r as the distance between 2 particles