The coordinate system is used with the parameters X (abscissa), Y (ordinate), A (angle), L (length). The tool for which these parameters are used is the coordinate box. As the cursor moves, the values on the coordinate box also change. You can watch the coordinate information of the cursor from the coordinate box.
If it is not open, you can open the coordinate box by clicking the right mouse button on any toolbar and marking the Coordinate Box line from the pop-up menu .
You can also open the coordinate box using the Show Coordinate Box command.