Chapter 8: Draw Instructions 131
For example,
Pen was used to create the arrow pointing to the local minimum of the selected
function.
Drawing Points on a Graph
DRAW POINTS Menu
To display the
DRAW POINTS menu, press y < ~. The TI-84 Plus’s interpretation of these
instructions depends on whether you accessed this menu from the home screen or the program
editor or directly from a graph.
Drawing Points Directly on a Graph with Pt
-On(
To draw a point on a graph, follow these steps.
1. Select 1:Pt-On( from the DRAW POINTS menu.
2. Move the cursor to the position where you want to draw the point.
3. Press Í to draw the point.
To continue drawing points, repeat steps 2 and 3. To cancel Pt-On(, press ‘.
Note: To continue drawing on the graph, move the
cursor to a new position where you want to begin
drawing again, and then repeat steps 2, 3, and 4. To
cancel
Pen, press ‘.
DRAW POINTS STO
1: Pt-On(
Turns on a point.
2: Pt-Off(
Turns off a point.
3: Pt-Change(
Toggles a point on or off.
4: Pxl-On(
Turns on a pixel.
5: Pxl-Off(
Turns off a pixel.
6: Pxl-Change(
Toggles a pixel on or off.
7: pxl-Test(
Returns 1 if pixel on, 0 if pixel off.
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