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Using A Different Expression - HP -28S Manual

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Evaluate the expression.
[~2EiE!
To return to the previous problem, you would execute EE (to switch to
the EE directory), execute SPI (to switch to the SPI directory), and
press
I
SOLV
I
SOLVR
(to activate the Solver menu); all the variable val-
ues would be the same as when you left SPl.
Using a Different Expression
Now that you have two sets of values to use with the expression EQl,
try creating a second expression EQ2 that you can use with either set
of values. There are two basic steps:
1. Switch to the EE directory, create the new expression, and store
the new expression in a variable EQ2.
2. Switch to the SPI or SP2 directory, change the value of EQ from
'EQl' to 'EQ2', and use the Solver to evaluate the expression.
Step 1: Switch to the EE directory, create the new expression,
store the new expression in a variable EQ2.
and
Switch to the EE directory.
EE
I
ENTER
I
No Current
E~uation
2:
{ HOME EE SP2 }
1:
16.25
IimImmll!IlImllmlllll!l!lllllmilD
Create the new expression. In this example, EQ2 will be an edited
copy of the expression EQl.
68
4: Repeating Calculations

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