Using Parentheses In Calculations - HP -22S Owner's Manual

Keys:
Display:
Description:
98120
12.0000';-
Pressing
8
does not
add 9
+
12.
30
13.0000
Calculate 4
X
7
3
plus 5
X
7
2
plus 6.
4070
7.0000 A
o
has higher priority
than
0.
38
1,372.0000+
Calculates 4
X
7
3 •
50
5.0000X
o
has higher priority
than
8.
70
7.0000 A
o
has higher priority
than
8.
2
A
2
8
1,617.0000 +
Adds 5 x 7
2
to 1,372.
60
1,623.0000
Completes the
calculation.
If a calculation requires that operations be done in an order inconsis-
tent with operator priority (for example, addition
before
multiplication), use parentheses.
Using Parentheses in Calculations
Use parentheses to group operations and to specify the order in which
they are performed.
*
For example, you can calculate:
9
+
12
3
by placing parentheses around the addition so that it is done before
the division:
• Closing parentheses at the end of the expression can be omitted. For example,
25+(3x(9+12
0
is equivalent to 25+(3X(9+12»
0.
34 2: Arithmetic and Variables