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 _    _      ___      _  _     ______     _____  
| \  / ||   / _ \\   | \| ||  /_   _//   / ___// 
|  \/  ||  / //\ \\  |  ' ||   -| ||-    \___ \\ 
| .  . || |  ___  || | .  ||   _| ||_    /    // 
|_|\/|_|| |_||  |_|| |_|\_||  /_____//  /____//  
`-`  `-`  `-`   `-`  `-` -`   `-----`  `-----`

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Text this: Polynomial forms of typical interatomic potential functions