HP 39gII, Руководство пользователя

Страница: 60 / 355

50 Function app
Define the
expressions
There are 10 function definition fields on the Function
app's Symbolic view. They are labelled
F1(X)
through
F9(X)
and
F0(X)
. Highlight the function definition field
you want to use, and enter an expression. You can press
to edit an existing expression or just start typing to
enter a new expression. Press C to delete an existing
expression, or
S
Clear
to clear all expressions.
2. Enter the linear function in
F1(X)
.
1 wdE
3. Enter the quadratic
function in
F2(X)
.
ldw
1 mjw
3
E
N O T E You can use the menu key to assist in the entry of
equations. It has the same effect as pressing
d
.
Set up the plot
You can change the scales of the x- and y-axes and the
spacing of the axis tick marks.
4. Display plot settings.
S
SETUP
-
PLOT
Note: for our example, you can leave the plot settings at
their default values. If your settings do not match this
example, press
S
CLEAR
to restore the default values.