Texas Instruments TI-89 Voyage 200, User Manual

Page: 469 / 1008

Additional Graphing Topics 469
Additional Graphing Topics Additional Graphing Topics Additional Graphing Topics Additional Graphing Topics
Collecting Data Points from a Graph Collecting Data Points from a Graph Collecting Data Points from a Graph Collecting Data Points from a Graph
From the Graph screen, you can store sets of coordinate values and/or math results for
later analysis. You can store the information as a single-row matrix (vector) on the Home
screen or as data points in a system data variable that can be opened in the Data/Matrix
Editor.
Collecting the Points Collecting the Points Collecting the Points Collecting the Points
1. Display the graph. (This example shows
y1(x)=5
ù
cos(x)
.)
2. Display the coordinates or math results you want to collect.
3. Save the information to the Home screen or the
sysData
variable.
8 ·
(Home
screen) or
8 b
(
sysData
variable)
4. Repeat the process as necessary.
Note:
To display coordinates or math results, trace a function with
…
or perform an
‡
Math
operation (such as
Minimum
or
Maximum
). You can also use the free-
moving cursor.