Hp 50g Graphing Calculator Manual do Utilizador descarregar pdf (Página 231)

Type an equation, say X^2 - 125 = 0, directly on the stack, and press @@@OK@@@ .

At this point the equation is ready for solution.

Alternatively, you can activate the equation writer after pressing @EDIT to enter

your equation. Press ` to return to the numerical solver screen.

Another way to enter an equation into the EQ variable is to select a variable

already existing in your directory to be entered into EQ. This means that your

equation would have to have been stored in a variable name previously to

activating the numerical solver. For example, suppose that we have entered the

following equations into variables EQ1 and EQ2:

Now, launch the numerical solver (‚Ï@@OK@@, and highlight the EQ field. At

this point press the @CHOOS soft menu key. Use the up and down arrow keys (—

˜) to select, say, variable EQ1:

Press @@@OK@@@ after selecting EQ1 to load into variable EQ in the solver. The new

equation is ready to be solved.

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Hp 50g Graphing Calculator Manual do Utilizador Página 231