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3-1 Storing Functions
Use the Graph Editor window to store a Graph & Table application function. This section covers Graph Editor
operations, and explains how to store functions.
Using Graph Editor Sheets
The Graph Editor window has five tabbed sheets named Sheet 1 through Sheet 5, each of which can contain
up to 20 functions. You can graph up to 20 functions simultaneously, as long as all of the functions are on the
same sheet.
The table below explains Graph Editor sheet operations.
To do this:
Select a sheet
Rename a sheet
Return the active sheet
name to its initial default
Initialize a Sheet
Initialize all the Sheets
Storing a Function
To input an expression, tap a blank line on the Graph Editor window and then perform the operations described
below.
To input this type of
expression:
Rectangular coordinate
y
f
x
expression (
=
(
))
Polar coordinate
expression
Parametric expressions
Do this:
Tap the tab of the sheet you want to select. The currently selected sheet is the
"active" sheet.
Tap the tab of the active sheet. On the dialog box that appears, enter up to 8
bytes for the sheet name, and then tap [OK].
Tap a, [Sheet], and then [Default Name].
Tap a, [Sheet], and then [Clear Sheet]. This clears all of the active sheet
functions and renames the sheet to its default name.
Tap [Edit], and then [Clear All]. In response to the confirmation dialog box that
appears, tap [OK]. This clears all of the expressions from the Graph Editor
window and returns the sheet names to their initial default names (Sheet 1
through Sheet 5).
Do this:
1. Tap [Type] - [
y
=Type].
2. Input an expression (such as: 2
and then press E.
x
contains variable
r
1. Tap [Type] - [
=Type].
2. Input an expression (such as: 5sin(3 )) that
and then press E.
contains variable
1. Tap [Type] - [ParamType].
xt
yt
2. In the
=,
= lines, input expressions that
each contain
t
(such as: 3sin(
then press E.
x
2
– 3) that
t
), 3cos(
t
)), and
Chapter 3: Graph & Table Application 99
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