ALPHABETA
This is part of the multicolvar module

Calculate the alpha beta CV

Examples
Glossary of keywords and components
Description of components
Quantity Description
.#!value the alpha beta CV
The atoms involved can be specified using
ATOMS the atoms involved for each of the torsions you wish to calculate. Keywords like ATOMS1, ATOMS2, ATOMS3,... should be listed and one torsion will be calculated for each ATOM keyword you specify. You can use multiple instances of this keyword i.e. ATOMS1, ATOMS2, ATOMS3...
Options
NOPBC

( default=off ) ignore the periodic boundary conditions when calculating distances

REFERENCE the reference values for each of the torsional angles. If you use a single REFERENCE value the same reference value is used for all torsions. You can use multiple instances of this keyword i.e. REFERENCE1, REFERENCE2, REFERENCE3...
COEFFICIENT the coefficient for each of the torsional angles. If you use a single COEFFICIENT value the same reference value is used for all torsional angles. You can use multiple instances of this keyword i.e. COEFFICIENT1, COEFFICIENT2, COEFFICIENT3...