Exercises, Order of calculation – HP 33s User Manual
Page 53
RPN: The Automatic Memory Stack
2–13
Exercises
Calculate:
0000
.
181
05
.
0
)
5
3805
.
16
(
=
x
Solution:
16.3805
5
z #
.05
q
Calculate:
5743
.
21
)]
9
8
(
)
7
6
[(
)]
5
4
(
)
3
2
[(
=
+
Ч
+
+
+
Ч
+
Solution:
2
3
4
5
z #
6
7
8
9
z
#
Calculate:
(10 – 5)
ч [(17 – 12) Ч 4] = 0.2500
Solution:
17
12
4
z
10
5
[ q
or
10
5
17
12
4
z q
Order of Calculation
We recommend solving chain calculations by working from the innermost
parentheses outward. However, you can also choose to work problems in a
left–to–right order.
For example, you have already calculated:
4
ч [14 + (7 Ч 3) – 2]
by starting with the innermost parentheses (7
× 3) and working outward, just
as you would with pencil and paper. The keystrokes were 7
3
z
14
2
4
[ q
.
If you work the problem from left–to–right, press
4
14
7
3
z
2
q
.