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  ____     _    _    ______      ___     __   __  
 |  _ \\  | || | || |      \\   / _ \\   \ \\/ // 
 | |_| || | || | || |  --  //  / //\ \\   \   //  
 | .  //  | \\_/ || |  --  \\ |  ___  ||  / . \\  
 |_|\_\\   \____//  |______// |_||  |_|| /_//\_\\ 
 `-` --`    `---`   `------`  `-`   `-`  `-`  --`

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Text this: Polynomial forms of typical interatomic potential functions