Instructions:
 Enter an integer
(or a sequence of integers separated by commas) in the field and press
<Enter> to insert new nodes.
 To insert a
random integer, press the Ins Randombutton. You can also
insert several random integers at once by typing the number of integers
you want to insert in the field and then press Ins Random.
 To delete an
integer, select the node by clicking it and press the Delbutton.
 To search for
an integer, enter an integer in the field and press the Findbutton.
If the node exists, it will automatically be selected.
 Find Min
and Find Max selects the smallest and the largest integer respectively.
 Automatic rotations:
When checked, the rotations will be performed automatically when the
tree breaks the AVL property*. You can press the Replaybutton
to watch the last insertion in slowmotion.
When unchecked, the animation will freeze when the tree breaks the
AVL property. The nodes that break the property will be marked red,
and you will have to press the Rotatebutton to perform the
necessary rotation. You can press Replay if you want to see
the rotation again.
 You can zoom in/out using the slider.
You can scroll the tree by pressing the mousebutton anywhere in the treewindow and drag.
* for every node in the tree, the height of the left
and right subtree may only differ by one at most
