Text field. Here you enter your function. When few functions are drawn, you can choose a function for Info tool holding command key and clicking desired function text in this field.
Draws everything that is checked above.
If checked 2-nd differential is drawn.
If checked 1-st differential is drawn.
If checked function is drawn.
Info tool. Use it to read coordinatates of particular point in the chart or in the plotted function.
Zoom tool. Use it to see more/less details. Double click sets scale to 1:1 and resets the divider.
Drag tool. Use it to scroll chart. Double click here puts point (0,0) in the center of the drawing part.
Selection tool. Use it to select graphics. Double click here selects all graphics.
