Texas Instruments TI-83 PLUS - Manual (Page 122)

TI-83 Plus Function Graphing 119
Shading Above and Below
When you select é or ê for two or more functions, the TI-83 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.
Note: When é or ê is selected for a Y= function that graphs a family of curves,
such as Y1={1,2,3}X , the four shading patterns rotate for each member of the
family of curves.