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5
SHORTHAND
A program is a sequence of keys to solve a problem. So far, programs have
been displayed by means of pictures of the keys.
From now on, however, keys
will be referred to by either the actual label on the key or by a suitable
mnemonic abbreviation.
For the following keys, we will use the actual label on the key, exactly as it
appears on the key.
888Ip~~~TI
c:::JD0[J
G80[J8GJ8[2JG~D
For the following keys, abbreviations will be used as shown.
KEY
ABBREVIATION
LINE
SPACE
SPACE
CHANGE
OPP SIGN
(OPPOSITE'SIGN)
SIGN
G
X SQ
(X SQUARED)
I II
X
I I
SQ RT
(SQUARE ROOT)
luxl
RECIP
(RECIPROCAL)
01
ENTER
ENTER EXP
EXPONENT
Other abbreviations will be introduced as the functions of other keys are
discussed.
5-1
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