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
I
ENTER
| 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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