# residual.m

Sets up interaction tensors under partial ordering in a liquid crystal with the user-supplied order matrix. All adjustable parameters are set during the call to create.m function.

## Syntax

    spin_system=residual(spin_system)


## Arguments

     spin_system  -  the output of create.m containing
spin system and interaction infor-
mation, which must include the or-
der matrix


## Outputs

     spin_system  -  the same object with anisotropic
parts of all interaction tensors
replaced with their partial order
residuals.


## Notes

1. This function is only applicable to high-field NMR.
2. The function overwrites the interaction tensors supplied by the user. Relaxation superoperator, if required, must be computed before this function is called.
3. This function is involed automatically by liquid.m context when parameters.needs cell array contains 'rdc'.