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CASIO

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Calculation Priority Sequence

The priority sequence of input calculations is evaluated in accordance with the rules below.
When the priority of two expressions is the same, the calculation is performed from left to right.


1 Parenthetical expressions
2 Functions that require an argument to the right and a closing parenthesis ")" following the argument
3 Functions that come after the input value (x2, x3, x-1, x!, °’ ”, °, r, g, %, t), powers (), roots ()
4 Fractions
5 Negative sign ((-)), base-n symbols (d, h, b, o)
6 Metric conversion commands (cmin, etc.), STAT Mode estimated values (xˆ, yˆ, xˆ1, xˆ2)
7 Multiplication where the multiplication sign is omitted
8 Permutation (nPr), combination (nCr), complex number polar coordinate symbol (∠)
9 Dot product (•)
10 Multiplication (×), division (÷)
11 Addition (+), subtraction (-)
12 and (logical operator)
13 or, xor, xnor (logical operators)

Note

When squaring a negative value (such as -2), the value being squared must be enclosed in parentheses (2). Since x2 has a higher priority than the negative sign, inputting 2 would result in the squaring of 2 and then appending a negative sign to the result.

Always keep the priority sequence in mind, and enclose negative values in parentheses when required.

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