Texas Instruments TI-80 Getting Started: Roots of a Function

6-2 Tables
Getting Started is a fast-paced introduction. Read the chapter for details.
Evaluate the function Y=X2 – 4X+3 at each integer between L10 and 10. How
many sign changes are there, and where do they occur?
1. If necessary, select FUNC from the MODE menu.
Press 2 # to display the TABLE SETUP
screen. Press · 10 to set TBLMIN=L10. Leave
@TBL=1.
2. Press ( @ a | 4 @ « 3 to enter the function
Y1=X2 – 4X+3.
3. Press 2 & to display the table screen.
4. Press 8 repeatedly to view the changes in the value
of Y1.
Getting Started: Roots of a Function