improper_distance.txt
fc1a176d0449efficient_neuronet

improper_distance.txt
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			"LAMMPS WWW Site"_lws - "LAMMPS Documentation"_ld - "LAMMPS Commands"_lc :c

			:link(lws,http://lammps.sandia.gov)
			:link(ld,Manual.html)
			:link(lc,Section_commands.html#comm)

			:line

			improper_style distance command :h3

			[Syntax:]

			improper_style distance

			[Examples:]

			improper_style distance
			improper_coeff 1 80.0 100.0 :pre

			[Description:]

			The {distance} improper style uses the potential

			:c,image(Eqs/improper_dist-1.jpg)

			where d is the distance between the central atom and the plane formed
			by the other three atoms. If the 4 atoms in an improper quadruplet
			(listed in the data file read by the "read_data"_read_data.html
			command) are ordered I,J,K,L then the I-atom is assumed to be the
			central atom.

			:c,image(JPG/improper_distance.jpg)

			Note that defining 4 atoms to interact in this way, does not mean that
			bonds necessarily exist between I-J, J-K, or K-L, as they would in a
			linear dihedral. Normally, the bonds I-J, I-K, I-L would exist for an
			improper to be defined between the 4 atoms.

			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:

			K_2 (energy/distance^2)
			K_4 (energy/distance^4) :ul

			:line

			[Restrictions:]

			This improper style can only be used if LAMMPS was built with the
			USER-MISC package. See the "Making LAMMPS"_Section_start.html#start_3
			section for more info on packages.

			[Related commands:]

			"improper_coeff"_improper_coeff.html

			[Default:] none