Cross Hair Cursor

While the mouse cursor is over the plotting area the cursor changes to a cross hair. The current coordinates can be seen at the intersections with the coordinate axes and also in the status bar at the bottom of the main window.

You can trace a function's values more precisely by clicking onto or next to a graph. The cross hair then will be caught and be colored in the same color as the graph. A second click anywhere in the window will leave this trace mode.

Note that tracing is only possible with explicitly given functions. The coordinates are always displayed according to a cartesian system of coordinates. Neither parametric functions, nor functions given in polar coordinates, nor derivatives can be traced in this way.