For example, to calculate 1 + (2 x 3), you may enter the problem as written from left to right,
with parentheses to prioritize the multiplication operation. When entered with parentheses,
this expression returns a result of 7.
Calculations in Algebraic Mode
In Algebraic mode, multiplication and division have a higher priority than addition and
subtraction. For example, in Algebraic mode, pressing
result of 7.00. In Chain mode, the same key presses return a result of 9.00.
In Algebraic mode, operations between two numbers have the following priority:
Highest priority: combinations and permutations, T probability calculations, % change, and
Second priority: the power function (
Third priority: multiplication and division
Forth priority: addition and subtraction.
The calculator is limited to 12 pending operations. An operation is pending when it is waiting
for the input of a number or the result of an operation of higher priority.
Using Parentheses in Calculations
Use parentheses to postpone calculating an intermediate result until you've entered more
numbers. You can enter up to four open parentheses in each calculation. For example,
suppose you want to calculate:
If you enter
This is because calculations without parentheses are performed from left to right as you enter
To delay the division until you've subtracted 12 from 85, use parentheses. Closing parentheses
at the end of the expression can be omitted. For example, entering 25 ÷ (3 × (9 + 12 = is
equivalent to 25 ÷ (3 × (9 + 12)) =.
If you type in a number, for example, 53, followed by the parenthesis symbol, the calculator
considers this implicit multiplication.
Table 2-8 Using parentheses in calculations
, the calculator displays the intermediate result, 0.35.
No calculation yet.
Calculates 85 - 12.