HP 49g Graphing Calculator - Manual (Page 31)

Changing the screen contrast
To change the display contrast (thereby darkening or lightening the text
relative to the background):
1. press and hold (ON)
2. press
0
to darken text or
Q
to lighten text
3. release (M) when the contrast is satisfactory.
Turning off
To turn off the calculator, press (r
You do not have to save your history before turning off the calculator.
(History is explained on page 2-6.) Wlien you next turn tire calculator on,
your history will be redisplayed.
DeFauU screen
The screen that appears when you turn on the calculator is called the
default screen.
Status area
History
Menu labels
I
Figure 2-1: The default screen
Many of your calculator operations can be doire from the default screen.
However, when you open various applications—such as Equation Writer,
Matrix Writer, and so on—the display will change to provide you with
tools for working with that application.
There are three main components of the default screen:
® status area
® history
• menu.
In addition to the status history, and menu, the bottom line of the display
becomes the command line when you start to enter data. The command
line—or user input line—is discussed on page 2-7.
Basic operation Page 2-3