TI-83 Plus Function Graphing 111
Defining Functions
Displaying Functions in the Y= Editor
To display the
Y=
editor, press
o
. You can store up to 10 functions to
the function variables
Y1
through
Y9
, and
Y0
. You can graph one or more
defined functions at once. In this example, functions
Y1
and
Y2
are
defined and selected.
Defining or Editing a Function
To define or edit a function, follow these steps.
1. Press
o
to display the
Y=
editor.
2. Press
†
to move the cursor to the function you want to define or edit.
To erase a function, press
‘
.
3. Enter or edit the expression to define the function.