Syntax:
angle_style cosine/squared
Examples:
angle_style cosine/squared angle_coeff 2*4 75.0 100.0
Description:
The cosine/squared angle style uses the potential
where theta0 is the equilibrium value of the angle, and K is a prefactor. Note that the usual 1/2 factor is included in K.
The following coefficients must be defined for each angle type via the angle_coeff command as in the example above, or in the data file or restart files read by the read_data or read_restart commands:
Theta0 is specified in degrees, but LAMMPS converts it to radians internally.
Restrictions: none
Related commands:
Default: none