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ARITHMETIC FUNCTION KEYS
8. EL 0. [): Oepresston of anyone of theSe keys telts the
calculator what operation to perform with the next numtwr entered.
During calculations.. intermediate results are also displaved when these
k~s
are de:pres.'I!:d.
EQUAL KEY
E]: when the
B
key is depressed. the answer
wit!
appear on thi!-
display.
PERCENT KEY
~:
Oeprnssion ot this key causes the flumber on the display to be
exDres:sed as a oercentaoe.
CHANGE SIGN KEY
l!B:Depression of this key changes the sign of the. displayed number.
To enter a negative number, enter the nomber first, then depress this
\t~v.
CLEAR AND CLEAR ENTRY KEYS
1Q.f0: Dp-pression of the dear
[g
key performs the following
functions:
1. Resets the overflow condition.
2. Clears alt registers of the calcultor and places a
lero
in the
rightmost pDsition.
Depression of the clear
entr)'~key
tlear£ the display register in case
a nlimbe< is entered bV mistake. It has no aHect on other storage
registers or any arithmetic operation which may be £eC
NOTE:
The
E2
must be depressed belore starting a new calC!JlatJon
if the last calculation was not concluded by depressing the El
od~
keys.
MEMORY OPERATION
Depression of the foUowing keys perform the various memory
operations.
1.!iG3 ,
Adds the contents 01 the display
(Xl
register to the
c.ontents of the memorY. lhf!;
display
(X} resister..and all previous
operations are unaffected by
this operation.
2.
~
: Subtracts the contents of the (Xl resister from the can·
tents of memory. The (X) resister and ali previous operation are
unaffected
by
this operation.
3.
'Mt1 :
Clears the memory (sets memory contents to zero) without
disturbing other calculator modes or resisters.
4.
rMBJ :
Recalls the contents of memory to the display without
clearing the
memory.
·MEMORY INDICATOR
This
indicator
is a dOl
which
will Jight in the.
leftmost display position
whenever memory contents are non·zero.
NEGATIVE NUMBER INDICATOR
This indicator is located in the leftmost display position and tights
whenver ne{Jative numbers or credit balances are displayed.
OVERFLOW {ERROR! INDICATOR
This indicator is rocated in the leftmost display position. Any
anWJer
or subtotal exceeding e.ight digits to the left of the decimal point,
overflow
indicator
~T."
lights and eight most significant digits are
displaved.The position
of
the decimal point in the overflowed display
tells you how many
digits are
overflowed.
For example. il the overflowed display reads C
1234.5678,
the decimal
point indicates
fOUf
overflowed (couhting from the left). The actual
...... is
123456780000.
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