Table of Contents
Advertisement
T
16.00
17 and 11 are added together
z
16.00
and the rest of the stack
Y
30.00
drops. 16 drops to Z and is
X
28.00
alsoduplicatedin T. 30 and
-
28areready to be added.
T
16.00
30and28are added together
z
Té:bz
and the stack drops again.
Y
16.00
Now 16 and 58 are ready to
X
5800
beadded.
T
16.00
Z
16.00
16 and 58 are added together
Y
16.00
for the final answer and the
X
74.00
stack continues to drop.
The same dropping action also occurs with[=],[x]and [£]. The
number in T is duplicated in T and Z, the number in Z drops to
Y, and the numbers in Y and X combine to give the answer,
which is visible in the X-register.
This automatic lift and drop ofthe stack give you tremendous
computing power, since you can retain and position inter-
mediate results in long calculations without the necessity of
reentering the numbers.
Order of Execution
When you see a problem like this one:
Sx[B+4—-(5+2)+@x3)]+(3x.213,
you must decide where to begin before you ever press a key.
Hewlett-Packard applications engineers have determined that
by starting every problem at its innermost number or paren-
theses and working outward, you maximize the efficiency and
power of your HP calculator. Of course, with the HP-25 you
have tremendous versatility in the order of execution.
Advertisement
Table of Contents
