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HP -28S Manual Page 149

Advanced scientific calculator.
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Now write G-O.
Begin the program and indicate the argument.
o
.G
~
x
r=2~: ------=7-:;-4~. 8=:-:0:;:-;5=-:;1;-:::9:-::4-::::8-::::0~52;::::"1
1 :
'gal'
Define the conversion.
o
x ~
9
~ ~ oz ~
. 1
CONVERT
I
I
DROP
II
ENTER
I
«
"* xl
ImtlIilIII_KaDBImm::I
2:
'gal'
1:
«
"*
x
«
x '9' , oz '
CONVERT DROP " "
ImtlIilIII_KaDBImm::I
This program means: take an argument from the stack (in RPN syn-
tax) or from the expression (in algebraic syntax) and call it
x;
convert
x
from grams to ounces; and drop the ounce unit from the stack.
Store the program in a variable G-O.
~----------------------~
~ G
.G
0
I
STO
I
3:
2:
74.8051948052
1:
'gal'
ImtlIilIII_KaDBImm::I
To test the conversions, check how may grams are in 1 ounce, and
then convert that result back to ounces. The result should be 1 again.
Convert 1 ounce to grams.
1
I
USER
I
0.(;
74.8051948052
'9al'
1:
28.349523125
mDlimII8mIDiTlll . . . .
There are about 28 grams in 1 ounce. Now convert this result back to
ounces.
3:
74.8051948052
2:
'gal'
1:
1
mDlimII 8m
1DiTlII . . . .
The conversions are inverses, as they should be.
148
14: Unit Conversion
I

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