Additional graphing topics – Texas Instruments TITANIUM TI-89 User Manual
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Additional Graphing Topics
Additional Graphing Topics
Additional Graphing Topics
Additional Graphing Topics
From the Home screen, graph the piecewise defined function: y = Lx when x < 0 and
y = 5 cos(x) when x ‚ 0. Draw a horizontal line across the top of the cosine curve. Then
save a picture of the displayed graph.
Steps and keystrokes
Display
1. Display the
MODE
dialog box. For
Graph
mode, select
FUNCTION
. For
Angle
mode,
select
RADIAN
.
Press
3 B 1 D D D B 1 ¸
2. Display the Home screen. Use the
Graph
command and the
when
function to
specify the piecewise defined function.
†
2
selects
Graph
from the
Other
toolbar
menu and automatically adds a space.
Press "
† 2 2 ™ WHEN j
c X 2 Â 0 b ? X b 5 p 2 X X
d d
3. Execute the
Graph
command, which
automatically displays the Graph screen.
The graph uses the current Window
variables, which are assumed to be their
standard values (
„
6
) for this example.
Press
¸
Graph when(x<0,
L
x,
5
…
cos(x))