Texas Instruments TI-84 PLUS - Graphing Calculator Manual Book page 79

Shading Above and Below
When you select é or ê for two or more functions, the TI-84 Plus 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.
When é or ê is selected for a Y= function that graphs a family of curves, such as
Note:
the four shading patterns rotate for each member of the family of curves.
Setting a Graph Style from a Program
To set the graph style from a program, select
this menu, press  while in the program editor.
in the current graphing mode.
style, as shown below.
1 = ç (line)
2 = è (thick)
3 = é (above)
4 = ê (below)
GraphStyle(function#,graphstyle#)
For example, when this program is executed in Func mode,
H:GraphStyle(
is an integer from 1 to 7 that corresponds to the graph
graphstyle#
5 = ë (path)
6 = ì (animate)
7 = í (dot)
from the
PRGM CTL
is the number of the Y= function name
function#
GraphStyle(1,3)
Chapter 3: Function Graphing
,
Y1={1,2,3}X
menu. To display
sets Y1 to é (above).
72