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7
Multiplication where the multiplication sign is omitted
8
Permutation (nPr), combination (nCr)
9
Multiplication (×), division (÷)
10
Addition (+), subtraction (−)
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)
preceded by a value (Priority 3, above), whose priority is greater than the
negative sign, which is a prefix symbol (Priority 5).
Example:
((-))2
-2
((-))2
Calculation Ranges, Number of
Digits, and Precision
The calculation range, number of digits used for internal calculation, and
calculation precision depend on the type of calculation you are performing.
Calculation Range and Precision
Calculation Range
Number of Digits for
Internal Calculation
Precision
2
. This is because x
2
= -4
2
(-2)
= 4
-99
±1 × 10
to ±9.999999999 × 10
23 digits
In general, ±1 at the 10th digit for a single
calculation. Precision for exponential
display is ±1 at the least significant digit.
Errors are cumulative in the case of
consecutive calculations.
100
2
is a function
99
or 0
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