Reviewing The Stack - HP 32SII Owner's Manual

Reviewing the stack

R (Roll Down)
The (roll down) key lets you review the entire contents of the stack by
"rolling" the contents downward, one register at a time. You can see each
number when it enters the X–register.
Suppose the stack is filled with 1, 2, 3, 4 (press 1
4. Pressing
back to where they started:
T 1
Z 2
Y 3
X 4
What was in the X–register rotates into the T–register, the contents of the
T–register rotate into the Z–register, etc. Notice that only the centents of the
registers are rolled — the registers themselves maintain their positions, and
only the X–register's contents are displayed.
R (Roll Up)
The (roll up) key has a similar function to
stack contents upward, one register at a time.
The contents of the X–register rotate into the Y–register; what was in the
T–register rotates into the X–register, and so on.
T 1
Z 2
Y 3
X 4
File name 32sii-Manual-E-0424
Printed Date : 2003/4/24
four times rolls the numbers all the way around and
4 3
1 4
2 1
3 2
2 3
3 4
4 1
1 2
The Automatic Memory Stack
Size : 17 .7 x 25.2 cm
2
2 1
3 2
4 3
1 4
except that it "rolls" the
4 1
1 2
2 3
3 4
2–3
3