Texas Instruments PLUS TI-89 - Manual (Page 29)

12 Chapter 1: Getting Started
01START.DOC TI-89/TI-92Plus:Getting Started (English) Bob Fedorisko Revised: 02/23/01 10:47 AM Printed: 02/23/01 2:10 PM Page 12 of 12 01START DOC TI-89/TI-92Plus:Getting Started (English) Bob Fedorisko Revised: 02/23/01 10:47 AM Printed: 02/23/01 2:10 PM Page 12 of 12
Steps
³
TI . 89
Keystrokes
›
TI . 92 Plus
Keystrokes Display
6. Set the lower bound.
Press B (right cursor) to move the
tracing cursor until the lower bound
for x is just to the left of the minimum
node before pressing
¸ the
second time.
B. . . B
¸ B . . . B
¸
7. Set the upper bound.
Press B (right cursor) to move the
tracing cursor until the upper bound
for x is just to the right of the
minimum node.
B. . . B B . . . B
8. Find the minimum point on the
graph between the lower and
upper bounds.
¸ ¸
minimum point
minimum coordinates
9. Transfer the result to the Home
screen, and then display the
Home screen.
Shortcuts for copying graph
coordinates to Home screen history:
TI
. 89: ¥ ·
TI . 92 Plus: ¥ H
¥ ·
" ¥ H
¥ "