Hp 39g Graphing Calculator Manual do Utilizador descarregar pdf (Página 35)

Storing a value

in a variable

You can save an answer in a variable and use the variable in

later calculations. There are 27 variables available for storing

real values. These are A to Z and

6. See Chapter 11,

“Variables and memory management” for more information

on variables. For example:

1. Perfoim a calculation.

45 00 8 [ x'^ 13

FUNCTION*

45+8''3

557

---------------------------------------------------------

Store the result in the A variable.

I ALPHA 1 A I ENTER

FUNCTION *

45+8'"3

557

Rnsl>fl

557

----------------------------------------------------------

3. Perform another calculation using the A variable.

95 [0 2 (Y) I alpha) a

1030^^

HnsfrR

95+2*fl

FUNCTION

557

1209

Accessing the

display history

Pressing enables the highlight bar in the display history.

While the highlight bar is active, the following menu and

keyboard keys are very useful:

Key Function

a.s

Scrolls through the display history.

Dcoan

Copies the highlighted expression to the

position of the cursor in the edit line.

Displays the current expression in standard

mathematical form.

|del|

Deletes the highlighted expression from

the display history, unless there is a cursor

in the edit line.

1 shift)

CLEAR

Clears all lines of display history and the

edit line.

Getting started

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