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3.
Calculate future sales by pressing
2
2
2
E
2
E
E
2
Sales for the next 3 years are projected to be $168,000; $336,000;
and $672,000.
Clearing Numbers
Clearing One Number. Clearing the X-register puts a zero in it. The
next number you key in (or recall) writes over this zero.
There are two ways to clear the number in the X-register:
Press
.
<
Press
.
C
For example, if you wanted to enter 1 and 3 but mistakenly entered 1
and 2, these keystrokes would correct it:
1
1
E
Clearing the Entire Stack. Pressing
zero and eliminates the Y-, Z-, and T-registers (reducing the size of the
stack to one register). The stack expands again when you enter more
numbers.
272 E: RPN: The Stack
File name : English-M02-1-040308(Print).doc
2
2
2
84
84
*
1
1
1
2
2
@c
Print data : 2004/3/9
for each of the next 3 years.
*
2
2
2
2
2
2
168
*
336
*
1
0
<
3
clears the X-register to
2
2
2
672
1
3
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