* collected at a constant bias potential, between updates.
*
* The bias keeps a grid with coordinate points that organizes spatial
- * information about the coordinate. The grid has the the same geometry
+ * information about the coordinate. The grid has the same geometry
* as the coordinate, i.e. they have the same dimensionality and periodicity
* (if any). The number of points in the grid sets the resolution of
* the collected data and its extent defines the sampling region of interest.