Angle Style cosine/periodic

More of a comment, but the equation presented in the docs for the cosine/periodic function is a little misleading. The coefficient of the energy expression ‘C’ is not divided by the square of the periodicity, I believe the function should read E = C/n^2 [ … ]

I recognize there is a “Note” about the value of C being divided by n^2 internally, and I have confirmed this by looking in the source code, however the energy expression contradicts this. For clarity, it would be best to have the displayed energy expression match the functional form in LAMMPS.