g_rotacf|calculates the rotational correlation function for molecules
g_rotmat|plots the rotation matrix for fitting to a reference structure
g_sans|computes the small angle neutron scattering spectra
+g_saxs|computes the small angle X-Ray scattering spectra
g_traj|plots x, v, f, box, temperature and rotational energy
g_vanhove|calculates Van Hove displacement functions
END