Texas Instruments TI-83 PLUS - Manual (Page 249)

TI-83 Plus Split Screen 246
Chapter 9:
Split Screen
Getting Started: Exploring the Unit Circle
Getting Started is a fast-paced introduction. Read the chapter for details.
Use G . T (graph-table) split-screen mode to explore the unit circle and its
relationship to the numeric values for the commonly used trigonometric angles
of 0
°
, 30
°
, 45
°
, 60
°
, 90
°
, and so on.
1. Press z to display the mode screen. Press
† † ~ Í to select Degree mode. Press †
~ Í to select Par (parametric) graphing
mode.
Press † † † † ~ ~ Í to select G . T
(graph-table) split-screen mode.
2. Press y . to display the format screen.
Press † † † † † ~ Í to select ExprOff .