Sharp EL-9900 - Manual (Page 120)

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Chapter 6: Advanced Graphing Features — Advanced Keyboard
1 PntON( PntON( x-coordinate, y-coordinate)
Draws a point at a given coordinate. It takes the X-Y
coordinate as an argument.
This tool can either be accessed from the GRAPH
window or other windows. Entering from the GRAPH
window enables a graphic entry, while entering from
other windows enables text-based entry.
2 PntOFF( PntOFF( x-coordinate, y-coordinate)
Erases a pixel point. It takes the X-Y coordinate as an
argument.
3 PntCHG( PntCHG( x-coordinate, y-coordinate)
Changes the status (i.e., visible/invisible) of a pixel at a
given coordinate. Deletes the point when it is displayed
and draws the point when it is not displayed.
4 PxlON( PxlON( column, row)
Draws a pixel point at a given screen location indicated
by column and row.
The column and row definitions are as follows:
Column: 0 to 132,
Row: 0 to 64.
( 0, 0 ) (126 , 0 )
( 0, 62 ) (126 , 62 )
column
132
This area cannot be specified
64
row
5 PxlOFF( PxlOFF( column, row)
Erases a pixel point at a given screen location indi-
cated by column and row.
6 PxlCHG( PxlCHG( column, row)
Changes the status (i.e., visible/invisible) of a pixel at a
given screen location indicated by column and row.