Texas Instruments -84 Plus, Руководство пользователя

Страница: 203 / 696

Chapter 8: Draw Instructions 200
Using Pen to Draw on a Graph Using Pen to Draw on a Graph Using Pen to Draw on a Graph Using Pen to Draw on a Graph
Using Pen to Draw on a Graph
Using Pen to Draw on a Graph Using Pen to Draw on a Graph
Using Pen to Draw on a Graph
Pen
draws directly on a graph only. You cannot execute
Pen
from the home screen or a
program.
To draw on a displayed graph, follow these steps.
1. Select
A:Pen
from the
DRAW
menu.
2. Place the cursor on the point where you want to begin drawing. Press
Í
to turn
on the pen.
3. Move the cursor. As you move the cursor, you draw on the graph, shading one pixel
at a time.
4. Press
Í
to turn off the pen.
For example,
Pen
was used to create the arrow pointing to the local minimum of the
selected function.
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
‘
.