Texas TI-86 ユーザーズマニュアル
104
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 104 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 104 of 22
Shading Areas of a Graph
To shade an area of a graph, the syntax is:
Shade(
lowerFunc
,
upperFunc
ã
,
xLeft
,
xRight
,
pattern
,
patternRes
ä
)
pattern
specifies one of four shading patterns.
1
vertical (default)
2
horizontal
3
negative slope( 45
¡)
4
positive slope (45
¡)
patternRes
specifies one of eight shading resolutions.
1
every pixel (default)
2
every second pixel
3
every third pixel
4
every fourth pixel
5
every fifth pixel
6
every sixth pixel
7
every seventh pixel
8
every eighth pixel
♦
The area that is specifically above lowerFunc and below upperFunc is shaded.
♦
xLeft
>
xMin
and xRight <
xMax
must be true.
♦
xLeft
and xRight specify left and right bounds for shading. (
xMin
and
xMax
are defaults.)
These
GRAPH
DRAW
menu items are interactive. Also, you can use all of them, except
PEN
,
on the home screen or in a program (A to Z Reference).
LINE
Draws a line segment from one point to another point you specify with the cursor
VERT
Draws a vertical line, which you can move to any displayed
x
value
To replicate the example
without additional graphs,
turn off all equations and stat
plots before entering the
instructions as shown.
without additional graphs,
turn off all equations and stat
plots before entering the
instructions as shown.