Vector diagram of proper motion in the LMC disc plane aligned with the sky plane. Left: Internal rotation due to the streaming motion of sources in the LMC disc, obtained by subtracting the contribution of the COM motion from the observed proper motion of each object. Right: Residual proper motion (observed proper motion – model proper motion), encompassing both the COM motion and internal rotational motion. A reference length for the vectors is shown. The background displays the density of likely LMC sources from the Gaia eDR3 dataset. The white contour line highlights the over-density regions, i.e. the bar and spiral arm. The dynamical centre derived for the entire sample in this study is indicated by a red cross. East is to the left and north is to the top.