Texas Instruments TI-83 PLUS - Manual (Page 238)

TI-83 Plus Draw Instructions 235
Changing Points with Pt . Change(
To change (toggle on or off) a point on a graph, follow these steps.
1. Select 3:Pt . Change( (point change) from the
DRAW POINTS
menu.
2. Move the cursor to the point you want to change.
3. Press Í to change the point’s on/off status.
To continue changing points, repeat steps 2 and 3. To cancel Pt . Change( ,
press ‘ .
Drawing Points from the Home Screen or a Program
Pt . On( (point on) turns on the point at ( X = x , Y= y ). Pt . Off( turns the point off.
Pt . Change( toggles the point on or off. mark is optional; it determines the
point’s appearance; specify 1 , 2 , or 3 , where:
1 = ¦ (dot; default) 2 =
›
(box) 3 = + (cross)
Pt . On( x,y[,mark] )
Pt . Off( x,y[,mark] )
Pt . Change( x,y )