Plotting A Piecewise-Defined Function - HP 39gs User Manual

Plotting a piecewise-defined function

3-12
Suppose you wanted to plot the following piecewise-
defined function.
⎧
x + 2 ; x
⎪
f x ( )
=
⎨ 2
x ; 1 –
⎪
⎩
4 x – ; x 1
1. Open the Function
aplet.
Select
Function
2. Highlight the line you want to use, and enter the
expression. (You can press
line, or
2
CHARS
1
>
CHARS
AND
4
> 1
CHARS
Note: You can use the
entry of equations. It has the same effect as pressing
.
≤
1 –
< ≤
x 1
≥
to clear all lines.)
CLEAR
≤
1
≤ 1
CHARS
menu key to assist in the
to delete an existing
Function aplet