Keys & Notation Conventions - HP 39gs Master Manual

K & N
K & N
E Y S O T A
E Y S O T
There are a number of types of keys/buttons that are used on the hp 39gs and hp 40gs.
The basic keys are those that you see on any calculator including scientific ones, such as the numeric
operators and the trig keys. Most of these keys have two or more functions, with the second function accessed
via the key and the alphabetic character accessed via the
SHIFT
In this book, all references to buttons, whether they need the
.
KEY
The SHIFT and ALPHA keys
C
C
T I O N O N V
A T I O N O N V
Take for example the
you get the
right you will see two additional meanings assigned via the
and
ALPHA
The key gives you the second function for each key. In the case of the
SHIFT
key, the second function is
COS
or inverse cos. Most keys have these second functions that are obtained via the
key.
SHIFT
Note: When I want you to use one of these keys that needs to have the
key pressed first I usually won't say so. It seems to me that you're intelligent
enough to work out for yourself when the
The ALPHA key
The next modifier key is the
characters, and these appear below and right of most keys. Pressing
before the
ALPHA
the calculator can be locked in
can also simply hold down the
E N T I O N S
E N T I O N S
ALPHA
key shown left. If you just press the key,
COS
function. However above left of the key and below
COS
keys.
key or not, are written in this typeface:
SHIFT
, sometimes referred to as arc-cos or cos
ACOS
SHIFT
key. This is used to type alphabetic
ALPHA
key will give lower case alphabetic characters. In many views
mode using one of the screen keys. You
ALPHA
key.
ALPHA
11
key.
key needs to be pressed.
5
SHIFT
-1
SHIFT
SHIFT