Button Keyboard shortcutEffect
Lambda << [Shift]+[Left arrow]Reduces Lambda quickly
Lambda < [Left arrow]Reduces Lambda slowly
Lambda > [Right arrow]Increases Lambda slowly
Lambda >>[Shift]+[Right arrow]Increases Lambda quickly
L-Zoom In iZooms in towards Lambda (stretches horizonal scale on left)
L-Zoom Out oZooms out (shrinks horizonal scale on left)
X-Zoom In [Shift]+iZooms in towards initial point X0 (stretches vertical scale on left and both scales on right)
X-Zoom Out [Shift]+oZooms out (shrinks vertical scale on left and both scales on right)
X0 << [Shift]+[Down arrow]Reduces X0 quickly
X0 < [Down arrow]Reduces X0 slowly
X0 > [Up arrow]Increases X0 slowly
X0 >> [Shift]+[Up arrow]Increases X0 quickly
f^# + +Iterate function drawn on right
f^# - -Choose smaller iteration of function
It=# -- [Shift]+[Backspace]Reduces number of iterates of X0 quickly
It=# - [Backspace]Reduces number of iterates of X0
It=# + [Space]Increases number of iterates of X0
It=# ++ [Shift]+[Space]Increases number of iterates of X0 quickly
• Drag with mouse to change X0 or Lambda

Note: You can only zoom in so far! After some point it will not allow you to zoom any further.