(Type "t" for , and type "s" for .)

__Example__:*f*_{1}(,)=5

** Click** the "Graph" button
(this button also refreshes the graph).

** Rotate** the graph by
clicking and dragging the mouse on the graph.

*To see two functions graphed simultaneously:*

** Enter** the second function

** Click** (to its "on" state) the check box next
to this input field.

** Click** the "Graph" button.

__Example__:*f*_{1}(,)=5
and
*f*_{2}(,)=3/sin

*Up to three functions can be graphed simultaneously.*

** To remove** a function from the graph, click (to its "off" state)
the check box next to the associated text input field and click
the "Graph" button to refresh.

** To erase** the graph and all input fields, click the
"Clear" button.

__Cylinder__:*f*_{1}(,)=3/sin

__Plane__:*f*_{1}(,)=
3/(cos sin )

The graphs of the functions are color-coded, corresponding to the colors
of the labels marking the text input fields:
the graph of
*f*_{1}(,)
is blue,
*f*_{2}(,)
is red, and
*f*_{3}(,)
is green.