HP 33s - Manual (Page 50)

2–10 RPN: The Automatic Memory Stack
T t t t
Z z z t
96.704 Y 96.7040 96.7040 z
X 96.7040 52.3947 52.3 947 149.0987
LAST X l l 52.3947
T t t
Z z t
Y 149.0987 z
X 52.3947 2.8457
LAST X 52.3947 52.3947
Keys: Display: Description:
96.704 ‘
)

 Enters first number.
52.3947 ›
 )
 Intermediate result.
{ 
) 
 Brings back display from before
› .
q
) 
 Final result.
Example:
Two close stellar neighbors of Earth are Rigel Centaurus (4.3 light–years away)
and Sirius (8.7 light–years away). Use c, the speed of light (9.5
× 10 15
meters per
year) to convert the distances from the Earth to these stars into meters:
To Rigel Centaurus: 4.3 yr Ч (9.5 Ч 10 15
m/yr).
To Sirius: 8.7 yr Ч (9.5 Ч 10 15
m/yr).
Keys: Display: Description:
4.3 ‘
)
 Light–years to Rigel Centaurus.