Hp 50g Graphing Calculator Instrukcja Użytkownika Pobierz pdf (Strona 390)

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Θ Enter the PLOT environment by pressing, simultaneously if in RPN mode,

„ñ. Notice that the highlighted field in the PLOT environment

now contains the derivative of Y1(X). Press L@@@OK@@@ to return to return

to normal calculator display.

Θ Press ‚@@EQ@@ to check the contents of EQ. You will notice that it

contains a list instead of a single expression. The list has as elements

an expression for the derivative of Y1(X) and Y1(X) itself. Originally,

EQ contained only Y1(x). After we pressed in the @)FCN@

environment, the calculator automatically added the derivative of Y1(x)

to the list of equations in EQ.

Saving a graph for future use

If you want to save your graph to a variable, get into the PICTURE environment

by pressing š. Then, press @EDIT LL@PICT. This captures the current

picture into a graphics object. To return to the stack, press @)PICT @CANCL.

In level 1 of the stack you will see a graphics object described as Graphic

131 × 64. This can be stored into a variable name, say, PIC1.

To display your figure again, recall the contents of variable PIC1 to the stack.

The stack will show the line: Graphic 131 × 64. To see the graph, enter the

PICTURE environment, by pressing š.

Clear the current picture, @EDIT L@ERASE.

Move the cursor to the upper left corner of the display, by using the š and

— keys.

To display the figure currently in level 1 of the stack press L REPL .

Note: the stack will show all the graph operations performed, properly

identified.

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