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How Clear X Works - HP -32S Owner's Manual

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Example: Constant, Cumulative Growth. Given a bacterial culture
with a constant growth rate of 50%, how large would a population of
100 be at the end of 3 days?
Replicates T-register
T
1.5
1.5 z
1.5
I ENTER| Y
IENTER I
1.5
1.5
IENTER | X
100
2
1.5
1.5
1.5
100
0
3
1 Fills the stack with the growth rate.
2 Keys in the initial population.
3 Calculates the population after 1 day.
4 Calculates the population after 2 days.
5 Calculates the population after 3 days.
How CLEAR x Works
1.5
1.5
1.5
150
0
4
1.5
1.5
1.5
225
0
5
1.5
1.5
1.5
337.5
Clearing the display (X-register) puts a zero in the X-register. The next
number you key in (or recall) writes over this zero.
There are three ways to clear the number in the X-register, that is, to
clear x:
• Press (c].
• Press ®.
• PresslHrcLEARl {«}. (These keystrokes are mainly used in program
entry.)
40
2: The Automatic Memory Stack

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