Highlights of the Keyboard and Display
Shifted Keystrokes
Each key has two functions: one printed on itsface and a shifted func
tion printed in color above the key. Press the colored shift key ((§)
before these functions. For example, to turn the calculator off, press
and release H, then press (£). This is written as Hi off 1.
Pressing (§ turns on the shift annunciator ( ^), which remains until
you press the next key. To cancel
^, just press @ again.
~J2 <i
Shifted function
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Jx
SE
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Letter for alphabetic key
The Letter Keys
Most of the keys have a letter written next to them, as shown above.
Whenever you need to type in a letter—which is used to identify a
variable or a label—the A..Z annunciator appears in the display, indi
cating that the letter keys are 'active*. (Variables are covered in
chapter 3.)
Backspacing and Clearing
One of the first things you need to know is how to clear: how to
correct numbers, clear the display, and, in general, start over.
1: Getting Started
15