Hp 48g Graphing Calculator Manual do Utilizador Página 213

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To enter the equation to be solved:
1. Put the equation (or properly-designed program) on stack level 1.
You may type it in using the command line or the Equation Writer
or recall it from a variable.
2. Press SK solveI . ■
3. Press ' ' (or tjpe . ■ . and press [ENTER)) to make the
equation on leAel 1 ihe current oijuation.
To enter jriiTient:
Press SOLVE]
to enter the SOLVR
environment \ou will see the ^arlal)les in the current equation
displayed as vjhite menu labels in the bottom row of the display and
the current equation (stored in EQ-') displayed in the top row. For
example:
EQ: ' X<0, 10,3*K-^2-SIH
4
3
2
V-
iniliHgr
18
1. If necessary, enter the SOLVR environment.
2. Type in the value of the known variable and press the menu key
corresponding to the variable's white menu label.
Press (S and then the menu key corresponding to the variable’s
white menu label.
1. Make sure that all knowui variables have values stored in them.
2. Optional: Enter a guess estimate for the value of the unknown
variable by typing in the guess and pressing the unknown variable’s
wTite menu key.
Solving Equations 18-7
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