What is pair_style command?

Hi everyone. I am a newbie in Molecular Dynamics simulations and also in LAMMPS. I have some unclear problems, Could you help me explain them?

  1. When I use pair_style command, it means that LAMMPS will be calculate potential energy between atoms which are in the same molecule as well as in different molecules?
  2. I am unsure about what intramolecular interaction and intermolecular interaction?
    I am gratefull for your explanation.

Hello

Everything you need to know can be found in the manual of LAMMPS, pair_style list command — LAMMPS documentation
Read in details and carefully.

Its best to look into books to learn more about it or ask your colleagues.

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