Texas Instruments TI-83 Manual Book page 86

Shading Above
and Below
Setting a Graph
Style from a
Program
3-10 Function Graphing
When you select é or ê for two or more functions, the
TI-83 rotates through four shading patterns.
Vertical lines shade the first function with a é or ê
graph style.
Horizontal lines shade the second.
Negatively sloping diagonal lines shade the third.
Positively sloping diagonal lines shade the fourth.
The rotation returns to vertical lines for the fifth é or ê
function, repeating the order described above.
When shaded areas intersect, the patterns overlap.
Note: When é or ê is selected for a Y= function that graphs a family of
Y1={1,2,3}X
curves, such as
each member of the family of curves.
To set the graph style from a program, select
from the
PRGM CTL
 while in the program editor. function# is the number
of the function name in the current graphing mode.
Y=
graphstyle# is an integer from
the graph style, as shown below.
= ç (line)
1
= ê (below)
4
(animate)
function#
GraphStyle(
For example, when this program is executed in
sets
GraphStyle(1,3)
, the four shading patterns rotate for
menu. To display this menu, press
to
1 7
= è (thick)
2
= ë (path)
5
= í (dot)
7
graphstyle#
, )
to é (above).
Y
1
H:GraphStyle(
that corresponds to
= é (above)
3
= ì
6
mode,
Func