22
—
S
HEET
M
ETAL
/HVAC
P
RO
C
ALC
USING PARENTHESES
Your calculator has Parentheses keys
(
and
)
for performing
mathematical operations. (In the Order of Operations method,
expressions inside of parentheses are performed first.)
The calculator offers four levels of parenthesis:
1)
First parenthesis level opened
– press
(
for one Right-
Sided Parenthesis.
2)
Second level opened
– press
(
a second time for two
Right-Sided Parentheses
( (
.
3)
Third level opened
– press
(
a third time for three Right-
Sided Parentheses
( ( (
.
4)
Fourth level opened
– press
(
a fourth time for four Right-
Sided Parentheses
( ( ( (
.
As
you
close
each
level
of
Parenthesis,
the
displayed
number
of
Parentheses
in
the
upper
left
corner
of
the
LCD
is
reduced
by
one,
and
the
results
of
the
expression
are
displayed.
