Texas Instruments TI-89 Titanium User Manual page 468

Examples Using the Y= Editor
Enter the expression
Enclose list elements in braces (2 [ and 2 \) and separate them with
Note:
commas.
Enter the expression
The commas are shown in the entry line but not in the function list.
Note:
Example Using the Graph Command
Similarly, you can use the Graph command from the Home screen or a program.
Additional Graphing Topics
and graph the functions.
{2,4,6} sin(x)
{2,4,6} sin({1,2,3} x)
Graphs three functions:
2 sin(x), 4 sin(x), 6 sin(x)
and graph the functions.
Graphs three functions:
2 sin(x), 4 sin(2x), 6 sin(3x)
465