Sharp EL-9900 Manuel D’Utilisation

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Chapter 6: Advanced Graphing Features — Advanced Keyboard

7 PxlTST(

PxlTST(

column, row)

Returns “1” if a pixel point is present at a given screen

location indicated by column and row.

Returns "0" if no pixel point exists.

C ON/OFF

Sets the visibility status of a given graph number (0-9).

1 DrawON

DrawON [

equation number 1, ....] or DrawON

Sets the specified graphs visible. If no argument is

given, then all graphs will be set visible.

2 DrawOFF

DrawOFF [

equation number 1, ....] or DrawOFF

Sets the specified graphs invisible. If no argument is

given, then all graphs will be set invisible.

Example

• Set Y1 and Y2 to visible and Y3 to invisible.

1. Press

@ d C 1.

2. Enter “1, 2” for equation numbers.

3. Press

4. Press

@ d C 2.

5. Enter 3 for

equation number.

6. Press