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THE KEYBOARD
VECTOR KEYS
SWITCH:
DEGREES
SWITCH:
FIXED POINT
SET: DECIMAL DIGITS to 3
PRESS:
PRESS:
a lternatively
PRFSS:
PRESS:
3
TO
RECT
3
TO
RECT
0
3
CHG
SIGN
0
DISPLAY:
(y) -
'1.
000
__.
y
(x)
5
.
928
~
X
t
8
t
8
The
ACC+
, ACC-, and RCL keys are special storage and recall
keys, for use with the (
+
)
e
and (
+
) F registers on ly. These
keys provide capability of vector addition and subtraction with
single keystrokes.
Care should be taken, when using these keys, of the CLEAR
operation as the CLEAR key clears both the (
+
)
e
and (
+
)
F
registers.
NOTE
The
+
and
-
signs on the
ACC+
and ACC
-
keys
are
not references to the (
+
) and
(-
) pages of the
memory; both keys are used only with the
(+)e
and
(
+
)f registers.
ACCUMULATE
+:
adds the contents of the X register to the
original contents of (
+
)
f
and, simultaneously, adds the
contents of the Y register to the original contents of (
+
)e.
The sums are entered into the (
+
)
F
and ( -t-)
e
registers
respectively; the contents of X and Y remain unchanged.
<+>e+
y
~ (+)e
(+)f
+X
~
(+)f
CONTINUEO
53
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