Table of Contents
Advertisement
THE KEYBOARD
ENTRY KEYS
lt is not always necessary to use the CLEAR key before perform-
ing a new calculation
,
except in the case of an unterminated
entry (expla ined under CLEAR X key) and the special case
ex-
plained under
ACC+
and
ACC-,
new information automatically
replaces the old.
CLEAR
is,
however, often a useful step, especially in a pro-
gram,
as old information in the
x, y, z,
(
+
)e
,
and (
+
)f
registers could give an erroneous result to a calculation
.
•
Clears the exponent in the X register and causes the
next digit entries (0 to 9) and CHG SIGN to affect only
the exponent. The exponent is entered serially, each
new digit entered becomes the least significant digit of the
exponent.
Pressing decimal point key after the ENTER EXP key has been
pressed clears the ENTER EXP condition (see description of
decimal point key).
Pressing ENTER EXP after any keyboard operation, except digit
entry will enter 1 in the X register.
EXAMPLES:
SWITCH:
FLOATING
SET: DECIMAL DIGITS
to 3
(a) Enter
1
x
10° (1 .0)
PRESS:
CLEAR
ENTER
X
EXP
DISPLAY:
I
.
000 000 000
00
~
X
(note that it is not necessary to use the 1 or
decimal point keys.)
repeat with
:
FIXED POINT
DISPLAY:
I
.
000
~
X
(b) Enter
1
x
103
(1000)
SWITCH:
FLOATING
PRESS:
CLEAR
ENTER
X
EXP
3
DISPLAY.
/
.
000 000 000
03
~ X
25
Advertisement
Chapters
Table of Contents
