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18
3
Primary Apps
This chapter briefly describe each primary app, summarizing its major views and the functionality available in each view. These
apps—and the Solver and Explorer apps—are described in detail in the
User Guide
.
Note that all the primary variables entered in expressions and open sentences in these apps—
X
,
Y
,
T
,
,
N
, etc.—must be entered
as uppercase characters. User-defined variables can be incorporated, and these can be in any case: upper, lower, or mixed. Thus
if you have created a variable called
Cost
, you could define a function as
X
2
+Cost
. (For instructions on how to create variables,
see “Storing Values in Variables” on page 7.)
The Function, Advanced Graphing, Parametric, Polar, and Sequence Apps
The Function, Advanced Graphing, Parametric, Polar, and Sequence apps are very similar and can be described together. The
Function app will be used as our sample app.
The Function app enables you to define functions in
x
, view their graphs, create evaluation tables, and find intersections, roots,
slopes, extrema, etc. To open the Function app, press
I
and select
Function
.
Adaptive
Fixed-step segments
Fixed-step dots
