Texas Instruments TI-86 - Manual (Page 118)

106
Chapter 6: Graph Tools
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 106 of 22 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 106 of 22
Drawing a Vertical or Horizontal Line
ᕡ Select VERT (or HORIZ ) from the GRAPH
DRAW menu. The graph is displayed and a
vertical or horizontal line is drawn at the cursor.
6 /
' (
(or ))
ᕢ Move the line to the x value (or to the y value,
if horizontal) through which you want the line
to pass.
ᕣ Draw the line on the graph.
! "
(or $ #)
b
To draw more lines, repeat steps 2 and 3; to cancel VERT or HORIZ , press :.
Drawing a Circle
ᕡ Select CIRCL from the GRAPH DRAW
menu. The graph is displayed.
ᕢ Define the center point of the circle with
the cursor.
6 / '
*
" # ! $
b
ᕣ Move the cursor to any point on the
intended circumference.
ᕤ Draw the circle.
" # ! $
b
To draw more circles, repeat steps 2 through 4; to cancel CIRCL , press :.
In the example, the function
y(x)=x^3+.3x
2 N 4x is selected.
Also, ZIN was executed once
with the zoom cursor at (0,0),
xFact=2
, and yFact=2.
In the example, the function
y(x)=x^3+.3x
2 N 4x is selected.
Also, ZIN was executed once
with the zoom cursor at (0,0),
xFact=2
, and yFact=2.
Here the circle appears as a
circle, regardless of window
variable values. When you
use Circl( from the CATALOG
to draw a circle, the current
window variable values may
distort the shape.