Texas Instruments TI-83 PLUS - Manual (Page 580)

TI-83 Plus Activities 577
4. Enter the expressions to define the sine curve.
5. Press r . As the graph is plotting, you may press Í to pause
and Í again to resume graphing as you watch the sine function
“unwrap” from the unit circle.
Note: You can generalize the unwrapping. Replace sin(T) in Y 2 T with any other
trig function to unwrap that function.