Texas Instruments PLUS TI-89 - Manual (Page 348)

Chapter 18: Text Editor 331
18TXTED.DOC TI-89/TI-92 Plus: Text Editor (English) Susan Gullord Revised: 02/23/01 1:15 PM Printed: 02/23/01 2:18 PM Page 331 of 18
General Steps For Detailed Information
1. Connect the
TI -89 / TI-92 Plus to your
computer via the TI-GRAPH
LINK cable.
Refer to the manual that came
with your
TI-GRAPH LINK .
2. Use the TI-GRAPH LINK
software to get the lab
report from the calculator,
and then print the report.
Assume you have stored:
¦ A function as y1(x)
(specify y1 , not y1(x) ).
¦ A graph picture as pic1 .
¦ Applicable information in
variables
der and sol .
When you print the lab report,
the contents of the print
objects are printed in place of
their variable names.
My assignment was to study the function:
.1*x^3ì.5*x+3
The three parts were:
1. Graph the function.
2. Find its derivative.
.3*x^2ì.5
3. Look for critical points.
x=1.29099 or x=ì 1.29099
In cases where a graph picture cannot fit on the current page, the
entire picture is shifted to the top of the next page.
Printing the Report
Example
Note: To store the
derivative to variable der,
enter:
d (y1(x),x) ! der
Note: To store the
derivative’s critical points to
variable sol, enter:
solve(der=0,x)
! sol