# angle_style zero command

## Syntax

``` LAMMPS
angle_style zero keyword
```

-   zero or more keywords may be appended
-   keyword = *nocoeff*

## Examples

``` LAMMPS
angle_style zero
angle_style zero nocoeff
angle_coeff *
angle_coeff * 120.0
```

## Description

Using an angle style of zero means angle forces and energies are not
computed, but the geometry of angle triplets is still accessible to
other commands.

As an example, the [compute angle/local](compute_angle_local) command
can be used to compute the theta values for the list of triplets of
angle atoms listed in the data file read by the [read_data](read_data)
command. If no angle style is defined, this command cannot be used.

The optional *nocoeff* flag allows to read data files with AngleCoeff
section for any angle style. Similarly, any [angle_coeff](angle_coeff)
commands will only be checked for the angle type number and the rest
ignored.

Note that the [angle_coeff](angle_coeff) command must be used for all
angle types. If specified, there can be only one value, which is going
to be used to assign an equilibrium angle, e.g. for use with [fix
shake](fix_shake).

## Restrictions

> none

## Related commands

[angle_style none](angle_none)

## Default

none