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HP -28S Manual Page 65

Advanced scientific calculator.
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Select the SOLVE menu.
1
SDLV
1
3:
2:
{ HOME EE SP1 }
1:
'EQ1'
1!imI1!mI~IBa~Rll1DI
Use STEQ
(Store Equation)
to store the name EQI in the variable EQ.
STEQ
3:
2:
1:
{ HOME EE SP1 }
1!imI1!mI~IBa~mm
Step 2: Assign values to the variables.
Display the Solver menu.
SOLVR
3:
2:
1:
{ HOME EE SP1 }
c:.u::::Jc::£[J[ll]mEIc::Jc::J
The variables in the current equation appear in the Solver menu. (If
the equation contains more than six variables, pressing
1
NEXT
1
displays
additional rows of variables.)
This menu looks different from the USER menu because it works dif-
ferently: the Solver menu
stores values
in variables rather than
evaluating variables.
Now you can assign values to the variables Rl, R2, and R3. First store
the number 8 in the variable Rl.
8
L ....
~:.L .....
. 1
!~I_:
1:
{ HOME EE SP1 }
c:.u::::Jc::£[J[ll]mEIc::Jc::J
Pressing
[=£~C]
is equivalent to putting
'R
1 ' on the stack and press-
ing
1
STD
I. Note that the top line of the display shows the variable
name and the value.
Store the number 6 in the variable R2.
64
4: Repeating Calculations
!ra-;
1:
{ HOME EE SP1 }
c:.u::::Jc::£[J[ll]mEIc::Jc::J

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