Calculator User Manual

Chapter 6: Graph Tools
105
06TOOLS.DOC TI-86, Chap 6, US English Bob Fedorisko Revised: 02/13/01 2:23 PM Printed: 02/13/01 3:01 PM Page 105 of 2206TOOLS.DOC TI-86, Chap 6, US English Bob Fedorisko Revised: 02/13/01 2:23 PM Printed: 02/13/01 3:01 PM Page 105 of 22
HORIZ
Draws a horizontal line, which you can move to any displayed
y
value
CIRCL
Draws a circle with a center point and radius you specify with the cursor
PEN
Draws the path of the cursor as you move it on the graph screen
PTON
Turns on the point at the cursor location
PTOFF
Turns off the point at the cursor location
PTCHG
Changes the on
à
off status of a point at the cursor location
CLDRW
Clears all drawings from the graph screen; replots the graph
TEXT
Draws characters on the graph at the cursor location
Drawing a Line Segment

Select
LINE
from the
GRAPH DRAW
menu. The
graph is displayed.

Define one segment endpoint with the cursor.
6 /
' '
" # ! $
b

Define the other endpoint of the segment. As
you move the cursor, a line anchored at the
first defined endpoint extends to the cursor.

Draw the line.
" # ! $
b
To draw more line segments, repeat steps 2 and 3; to cancel
LINE
, press
:
.
In the example, the functions
y(x)=x^3+.3x2
N
4x
and
y(x)=x2+3x
N
3
are selected.