HP 15c Collector's Edition Owner's Handbook Manual page 50

38 Section 3: The Memory Stack, LAST X, and Data Storage
Nested Calculations
Keystrokes
6 v 7 +
5 *
4 +
3 *
t
T
z
Z
y
Y
X x
Keys:
Display
13.0000
65.0000
69.0000
207.0000
z
y
x
6
v
6
y y
x x
6 6
6 7
7
y
y
x
13
+