Operation Manual

Chapter 17: Activities 494

Graphing the Unit Circle and Trigonometric Curves

Graphing the Unit Circle and Trigonometric CurvesGraphing the Unit Circle and Trigonometric Curves

Graphing the Unit Circle and Trigonometric Curves

Problem

ProblemProblem

Problem

Using parametric graphing mode, graph the unit circle and the sine curve to show the

relationship between them.

Any function that can be plotted in

Func mode can be plotted in Par mode by defining the

X component as T and the Y component as F(T).

Procedure

ProcedureProcedure

Procedure

1. Press z. Select

Par, Simul, and the default settings.

2. Press p. Set the viewing window.

3. Press o. Turn off all functions and stat plots. Enter the expressions to define the

unit circle centered on (0,0).

4. Enter the expressions to define the sine curve.

Tmin=0

Tmax=2p

Tstep=.1

Xmin=

Xmax=7.4

Xscl=pà2

Ymin=L3

Ymax=3

Yscl=1