HP -28S Manual page 68

Switch to the SP2 directory.
SP2
I
ENTER
I
Check the current path.
PATH
3: { HOME EE SPl )
2: 10
1: 12
GImllml!lmmDD'iIDl1ll!la1:!Dlll
3: 10
2: 12
1: { HOME EE SP2 )
GImllml!lmmDD'iIDl1ll!la1:!Dlll
Note that HOME and EE are in the current path, as they were when
SP1 was the current directory, but SP1 doesn't appear now. As a re-
sult, you can still find the variables in HOME (such as RENAME) and
in EE (such as EQ1), but not the variables in SP1 (EQ, R1, R2, and
R3); now you can create new variables Rl, R2, and R3.
Step 2: Define the same expression to be EQ.
As before, use STEQ to store the name EQ1 in the variable EQ.
CJ
EQ1
I
SOLV
I
STEQ
3: 10
2: 12
1: { HOME EE SP2 )
IfmlIIfi!1RB'U1DmW6I!llI1I1ilmD
Step 3: Use the Solver as before to assign values and evaluate the
expression. Suppose the values for the new problem are
R1
=
11,
Select the Solver menu.
SOLVlt
Assign the values.
11
[}ID
21
[-If?:]
7 [=-R3]
R2
= 21,
R3
= 7
3:
10
2: 12
1: { HOME EE SP2 )
[liJ[liJI:iL1i]ffi)c:::Jc:::J
~ru-
12
1: { HOME EE SP2 )
[liJ[liJI:iL1i]ffi)c:::Jc:::J
4: Repeating Calculations 67