Main Window
Insert the co-orinates of the points in the grid on the left and the minimum and maximum values of the axes in their spaces in the top right. To draw the graph click on OK. If nothing happens check that the min and max values are correct, the program will not draw the graph if values are out width the ranges you have set. To the quit the program click QUIT.
OK : Draws graph
Load : Loads previously saved data
Save : Saves data
Quit : Exits program
There are also menu commands, they should be self explanitory
Graph Window
Save : Saves the graph as an iff image
Options : Here you can select if you want the have the best fit staight line drawn on the graph.
Cancel : This takes you back to the Main Window. Any options you have made will be kept.
Tiding you graph
To tidy your graph up (add labels etc) I suggest you load it into a drawing package such as 'Draw Studio' and 'PPaint'.