Texas Instruments TI-83 Series Manual page 9

numbers in the usual numeric fashion that you used in
elementary school — provided it can display it using no
more than ten digits. If the number requires more than
ten digits, the calculator displays it using scientific
notation.
In Scientific (Sci) mode, numbers are displayed using sci-
entific notation; and in Engineering (Eng) mode, numbers
are displayed in engineering notation. These three modes
are illustrated in Figure 1-3. In this figure, the first answer
is displayed in normal notation, the second in scientific
notation, and the third in engineering notation.
In scientific and engineering notation, the calculator uses
En to denote multiplication by 10
Figure 1-3: Normal, scientific, and engineering notations.
Float 0123456789:
Select Float if you want the calculator to display as many
digits as possible. Select 0 if you want all numbers rounded
to an integer. If you're dealing with money, select 2 so
that all numbers will be rounded to two decimal places.
Selecting 5 rounds all numbers to five decimal places, and,
well, you get the idea.
Radian or Degree:
If you select Radian, all angles entered in the calculator
are interpreted as being in radian measure; all angular
answers given by the calculator will also be in radian
measure. Similarly, if you select Degree, any angle you
enter must be in degree measure, and any angular
answer given by the calculator is also in degree measure.
Func, Par, Pol, or Seq:
This setting tells the calculator what type of functions you
plan to graph. Select Func to graph plain old vanilla func-
tions, y = f(x). Select Par to graph parametric equations;
Pol to graph polar equations; and Seq to graph sequences.
(Sequences are also called iterative equations.)
Chapter 1: Coping with the Basics
Normal
Scientific
Engineering
n
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