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E-72
Sequence Operation Type Description
7Multiplication, Division
Omitted Multiplication Sign
×, ÷
Multiplication sign can be omitted immediately
before π ,e, variables, scientifi c constants (2 π , 5A,
π A, 3mp, 2i, etc.), and parenthetical functions
(2'(3), Asin(30), etc.)
8Addition, Subtraction +, −
9Relational Operators =, , >, <, >,<
10 Logical Product and
11 Logical Sum, Exclusive Logical
Sum, Exclusive Negative
Logical Sum
or, xor, xnor
Note
If a calculation contains a negative value, you may need to enclose the negative value in
parentheses. If you want to square the value –2, for example, you need to input: (–2)
2. This is
because x2 is a function preceded by a value (Priority 2, above), whose priority is greater than the
negative sign, which is a prefi x symbol (Priority 4).
-cxw –2
2 = –4
(-c)xw (–2)
2 = 4
Multiplication and division, and multiplication where the sign is omitted are the same priority
(Priority 7), so these operations are performed from left to right when both types are mixed in the
same calculation. Enclosing an operation in parentheses causes it to be performed fi rst, so the
use of parentheses can result in different calculation results.
b$c.(i)w 1 { 2
i = 1
2i
b$(c.(i))w 1 { (2
i) = – 1
2i
k Stack Limitations
This calculator uses memory areas called “stacks” for temporary storage of lower calculation priority
sequence values, commands, and functions. The “numeric stack” has 10 levels and the “command
stack” has 24 levels as shown in the illustration below.
A Stack ERROR occurs when the calculation you are performing causes the capacity of a stack to
be exceeded.
12345
1 2 3 4 5 6 7
12345
1 2 3 4 5 6 7
Numeric Stack Command Stack
1
2
3
4
5
2
3
4
5
4
1
2
3
4
5
6
7
Numeric Stack Command Stack
1
2
3
4
5
2
3
4
5
4
1
2
3
4
5
6
7
73


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