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HP 33S User Manual

HP 33S
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2–6 RPN: The Automatic Memory Stack
File name 33s-English-Manual-040130-Publication(Edition 2).doc Page : 388
Printed Date : 2004/1/30 Size : 13.7 x 21.2 cm
Using a Number Twice in a Row
You can use the replicating feature of
Ï
to other advantages. To add a
number to itself, press
Ï
Ù
.
Filling the stack with a constant
The replicating effect of
Ï
together with the replicating effect of stack drop
(from T into Z) allows you to fill the stack with a numeric constant for calculations.
Example:
Given bacterial culture with a constant growth rate of 50% per day, how large
would a population of 100 be at the end of 3 days
?
Replicates T
register
T
1.5
1.5
1.5
1.5
1.5
Z
1.5
1.5
1.5
1.5
1.5
Y
1.5
1.5
1.5
1.5
1.5
1.5
X
1.5
100
100
150
225
337.5
12345
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
Clearing the 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 contents of the X–register, that is, to clear x:
1. Press
Å
2. Press
~
3. Press
¹
¡
{
} (Mainly used during program entry.)
Note these exceptions:

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HP 33S Specifications

General IconGeneral
TypeScientific
Form factorPocket
Product colorSilver
Digits10 digits
Display number of lines2 lines
Keyboard typeAlphanumeric
Menus and promptsYes
Weight and Dimensions IconWeight and Dimensions
Dimensions (WxDxH)157 x 16 x 81 mm

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