Shading Areas On A Graph; Drawing Circles - Texas Instruments TI-84 PLUS - Graphing Calculator Manual Book

Shading Areas on a Graph

Shading a Graph
To shade an area on a graph, select
the home screen or to the program editor.
Shade(lowerfunc,upperfunc[,Xleft,Xright,pattern,patres])
MathPrint™
draws
Shade(
lowerfunc
specifically above
lowerfunc
shaded.
and , if included, specify left and right boundaries for the shading.
Xleft Xright
numbers between
Xmin
specifies one of four shading patterns.
pattern
vertical (default)
pattern=1
pattern=2 horizontal
pattern=3
negative—slope 45
pattern=4
positive—slope 45
specifies one of eight shading resolutions.
patres
patres=1 shades every pixel (default)
shades every second pixel
patres=2
patres=3 shades every third pixel
patres=4 shades every fourth pixel
shades every fifth pixel
patres=5
patres=6 shades every sixth pixel
patres=7 shades every seventh pixel
shades every eighth pixel
patres=8

Drawing Circles

Drawing a Circle Directly on a Graph
To draw a circle directly on a displayed graph using the cursor, follow these steps.
1. Select from the
9:Circle(
7:Shade(
Classic
and in terms of X on the current graph and shades the area that is
upperfunc
and below
upperfunc
and , which are the defaults.
Xmax
¡
¡
menu.
DRAW
from the menu. The instruction is pasted to
DRAW
. Only the areas where
Chapter 8: Draw Instructions
< are
lowerfunc upperfunc
and must be
Xleft Xright
128