HP HP-65 - Page 36

Press
See Displayed Comment
1.10 [EnTER®] [EnTER® [ENTERA! 1000 [ETEENTE
x
etc.
Original
amount
Amount after
1 period
Amount after
2 periods
Amount after
3 periods
Amount after
4 periods
Amount after
5 periods
Amount after
6 periods
In other words, you put the growth factor (1.10) in the Y, Z, and
T stack registers and put the first term (1000) in the X-register.
Thereafter, you get the next term whenever you press X . For
example, when you press [X the first time, you calculate 1000 X
1.10 (i.e., xXy). The result (1100.00) is displayed in the X-
register and a new copy of the growth factor (1.10) drops into
the Y-register. Since a new copy of the growth factor is gener-
ated each time the stack drops, you never have to reenter it.
Contents
t(1.10)
z (1.10)
y (1.10)
x (1000)
\
N
Register
T (1.10) Stack contents before and
Z (1.10) after first multiplication
Y (1.10)
(x X y)~ X (1100)