Harmonic Angle vs Cosine Angle

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1

Dear All,

What is the main difference between those two angle styles?
How to decide which one to use?

harmonic angle: http://lammps.sandia.gov/doc/angle_harmonic.html

cosine angle: http://lammps.sandia.gov/doc/angle_cosine.html

Best Wishes!

2

Dear All,

What is the main difference between those two angle styles?

The functional form of the potential.

How to decide which one to use?

Whatever the force field needs.