Texas Instruments TI-83 Manual Book page 37

Radian, Degree
Func, Par, Pol,
Seq
Connected, Dot
Angle modes control how the TI.83 interprets angle values
in trigonometric functions and polar/rectangular
conversions.
mode interprets angle values as radians. Answers
Radian
display in radians.
mode interprets angle values as degrees. Answers
Degree
display in degrees.
Graphing modes define the graphing parameters. Chapters
3, 4, 5, and 6 describe these modes in detail.
(function) graphing mode plots functions, where
Func
a function of (Chapter 3).
X
(parametric) graphing mode plots relations, where
Par
and are functions of
Y
(polar) graphing mode plots functions, where
Pol
function of (Chapter 5).
q
(sequence) graphing mode plots sequences (Chapter 6).
Seq
plotting mode draws a line connecting each
Connected
point calculated for the selected functions.
plotting mode plots only the calculated points of the
Dot
selected functions.
(Chapter 4).
T
Operating the TI-83 1-11
is
Y
X
is a
r