Specifications
8
9th
Permutations, combinations: nPr, nCr
10th
Multiplication and division:×, ÷
11th
Addition and subtraction: +, -
12th
Calculation ending instruction: =, M+, M- STO
(store memory)
In the same precedence level, calculations are performed from left to right.
Operation enclosed within parentheses is performed first. When a calculation
contains an argument that is a negative number, the negative number must be
enclosed within parentheses.
Example:
(-) 3 x
2
= -3
2
=9
( ( - ) 3 ) x
2
=
=9
When same priority commands are mixed into one calculation.
Example 1:
1 ÷ 2 Shift = 1
Example 2:
2 Shift STO ( - ) 2→ A
1 ÷ 2 Alpha A = 1÷2A=
Calculation Stacks
This calculator uses memory areas, called stacks, to temporarily store numeric
value (numbers) and commands (+, -, ×........) according to their precedence
during calculations.
The numeric stack has 10 levels and command stack has 128 levels. A stack
error [Stack ERROR] occurs whenever you try to perform a calculation that
exceeds the capacity of stacks.
Calculations are performed in sequence according to Order of Operations.
After the calculation is performed, the stored stack values will be released.
Error Messages and Error Locator
The calculator is locked up while an error message is shown on the display to
indicate the cause of the error.
Press CA to clear the error message, then return to the initial display of latest
mode.
Press or to display input expression with the cursor positioned next to
the error.
Press ON to clear the error message, clear the replay memory history and
return to the initial display of the latest mode.
Error Message
Cause
Action
Math ERROR
·The intermediate or final
result is outside the allowable
calculation range.
·An attempt to perform a
calculation using a value that
exceeds the allowable input
range.
·An attempt to perform an
illogical operation (division by
zero, etc.).
Check the input values
and make sure they are
all within the allowable
ranges, Pay special
attention to values in
any using memory
areas.
Stack ERROR
• The capacity of the numeric
stack or operator stack is
exceeded.
• Simplify the
calculation.
• Divide the calculation
into two or more
separate parts.
Syntax ERROR
An attempt to perform an
illegal mathematical
operation.
Press or to
display the cursor at the
location of the error,
make appropriate
corrections.
Insufficient
MEM
The calculation result of
Function Table mode
parameters caused more
than 30 x-values to be
generated for a table.
Narrow the table
calculation range by
changing the start, end,
and step values, and try
again.
Battery Replacement
When the display characters are dim and the contrast cannot be adjusted
further, turn the calculator off and replace the battery immediately. Please
replace the battery using the following procedures.
1. Press Shift OFF to power off the calculator.
2. Remove the screw that securely fixes the battery cover in place.
3. Remove battery cover.
4. Remove the old battery with ball point pen or similar sharp object.
5.
6. Replace the battery cover, screw, and press ON , Shift CLR 3 = CA
to initialize the calculator.
Caution: Risk of explosion if battery is replaced by an incorrect type. Dispose of
used battery at your local collection point.
Electromagnetic interference or electrostatic discharge may cause the display to
malfunction or the contents of the memory to be lost or altered. When this occur
,press ON , shift CLR 3 = CA to restart the calculator.
Specifications
Power Supply: LR44*1 (1.5V)
Power Consumption: 0.0015 W
Battery Life: 3 years
Auto power off: 5-9 minutes
Usable Temperature: 0-40℃
Size: L153*W80*H14 mm
Weight: 86g (hard cover is not included)
Producer
Aurora Electronics (UK) LTD.
Unit 1 & 2 Shires Industrial Estate
Lichfield, Staffordshire, WS14 9AZ, U.K.
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