Each time a graph window is opened, two more entries appear in the main menu: graph and mathematics

The mathematics-menu

This menu allows you to apply several kinds of mathematic operations to the diagram.

Below you find some selected examples from the mathematics-menu.

If for example you apply 'Mean/Min/Max for...' the x-Axis, these values appear as two different-coloured dots and a vertical line within the diagram and also appear in the 'Notes' section to the right of the graph-window.(see graphic below)

After selecting the menu-item 'Linear Regression y=a+xb' a line of best fit is displayed as in the graphic below. (red coloured line)