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improper_style cvff command

Syntax:

improper_style cvff 

Examples:

improper_style cvff
improper_coeff 1 80.0 -1 4 

Description:

The cvff improper style uses the potential

where phi is the Wilson out-of-plane angle.

The following coefficients must be defined for each improper type via the improper_coeff command as in the example above, or in the data file or restart files read by the read_data or read_restart commands:

Restrictions: none

Related commands:

improper_coeff

Default: none