Order of calculation of a formula – Brother WP330MDS User Manual
Page 203
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9. To recalculate, press
MENU,
use
<r~
and to select RECALC, and press
RETURN.
All the results that depend on the value of A2 are now updated.
A2
20
PITCH: 10
A
» ■■
C
D
F
i
3
20
2
22
18
40
10 400
a
4
Order of calculation of a formula
Calculation of a formula is performed in the order of precedence of the operators: the
+ or - sign is first attributed to the operand directly to the sign’s right, next
exponentiations are carried out, then multiplication and divisions, and finally,
additions and subtractions.
Example 1:2#3* 4-2
8 4-2
32-2
30
When two or more operators have the same order of precedence (multiplication and
divisions, or addition and subtraction), calculation is carried out from left to right.
Example 2:1+3+4-2
2#3#2
4+4-2
8#2
8-2
64
6
Use of parentheses to change the order of mathematical operations. The formula
in
parentheses is calculated first.
Example 3:1+3 *4
(1+3) *4
1+12
4*4
13
16
Parentheses can be nested. Calculation proceeds from the innermost pair of
parentheses.
Example 4: ((3 *4+1) *4+3) *4-12
(13 *4+3) *4-12
55*4-12
220-12
208
193