Texas Instruments TI-73 用户手册

     Chapter 10: Drawing

7310ENG.DOC   Draw   Texas Instruments   Revised: 05/29/98 6:43 PM   Printed: 05/19/99 9:01 AM   Page 204 of 22

 

 

From the Home screen or the Program editor, you can draw,

erase, or change a point’s status on the Graph screen.

, 

, and 

 accept two mandatory arguments:

X and Y, which specify the coordinates of the point that you

want to draw, erase, or change. 

 and 

have one

optional argument, mark, which determines the point’s

appearance. Specify 

 (default), 

, or 

, where:

(default)= 

¦

 (dot)

= 

›

 (box)

= 

 (cross)

If you specify mark to turn on a point with 

, you must

specify the same mark when you turn off the point with 

.

 does not have the mark argument.

Also note that if, for example, you specify the point (20,30) but

your viewing window is set to the standard values, you do not

see the point since the viewing window does not include the

specific part of the graph where (20,30) exists. Press '

to redefine the 

 values.

Note: Redefining 

 values, graphing a 

 function or

stat plot, or pressing ( erases all drawn items from the

Graph screen.

X,Y[,mark]

X,Y[,mark]

X,Y

Turn on point (M5,3) and assign the box mark to it.

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