HP 48gII Manual do Utilizador descarregar pdf (Página 101)

Page 6-10

In RPN mode, enter the equation between apostrophes and activate command

STEQ. Thus, function STEQ can be used as a shortcut to store an expression

into variable EQ.

Press

to see the newly created EQ variable:

Then, enter the SOLVE environment and select Solve equation…, by using:

‚Ï

@@OK@@. The corresponding screen will be shown as:

The equation we stored in variable EQ is already loaded in the Eq field in the

SOLVE EQUATION input form. Also, a field labeled x is provided. To solve

the equation all you need to do is highlight the field in front of X: by using

, and press

@SOLVE@

. The solution shown is X: 4.5006E-2:

This, however, is not the only possible solution for this equation. To obtain a

negative solution, for example, enter a negative number in the X: field before

solving the equation. Try

@@@OK@@

@SOLVE@. The solution is now X: -

3.045.

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HP 48gII Manual do Utilizador Página 101