Graphing A Family Of Curves - Texas Instruments TI-89 Manual Book

Graphing a Family of Curves

Examples Using the
Y= Editor
Tip: Graph math results
may vary.
Tip: Enclose list elements in
braces ( and
2 [ 2 \
and separate them with
commas.
Note: The commas are
shown in the entry line but
not in the function list.
Example Using the
Graph Command
Simultaneous
Graphs with Lists
Tip: To set graph formats
from the Y= Editor, Window
Editor, or Graph screen,
press:
TI-89: ¥ Í
TI-92 Plus: ¥ F
When Tracing a
Family of Curves
208 Chapter 12: Additional Graphing Topics
By entering a list in an expression, you can plot a separate
function for each value in the list. (You cannot graph a family
of curves in
SEQUENCE
Enter the expression
)
Enter the expression
Similarly, you can use the
a program as described on page 205.
graph {2,4,6}sin(x)
graph {2,4,6}sin({1,2,3}x)
When the graph format is set for
are graphed in groups according to the element number in the list.
The functions within each group are graphed simultaneously, but the
groups are graphed sequentially.
Pressing D or C moves the trace cursor to the next or previous
curve in the same family before moving to the next or previous
selected function.
or graphing mode.)
3D
{2,4,6} sin(x) and graph the functions.
Graphs three functions:
2 sin(x), 4 sin(x), 6 sin(x)
and graph the functions.
{2,4,6} sin({1,2,3} x)
Graphs three functions:
2 sin(x), 4 sin(2x), 6 sin(3x)
command from the Home screen or
Graph
Graph Order
For these example functions, the
TI-89 / TI-92 Plus
¦
2 sin(x), x+4, cos(x)
¦
4 sin(x), 2x+4
¦
6 sin(x), 3x+4
= , the functions
SIMUL
graphs three groups.