Manual
70 An introduction to HP apps
As you use an app to explore a lesson or solve a problem, you
add data and definitions in one or more of the app’s views. All
this information is automatically saved in the app. You can come
back to the app at any time and all the information is still there.
You can also save a version of the app with a name you give it
and then use the original app for another problem or purpose.
See “Creating an app” on page 107 for more information about
customizing and saving apps.
Linear Solver Find solutions to sets of two or three linear
equations.
Parametric Explore parametric functions of x and y in
terms of t. Example: x = cos (t) and
y = sin(t).
Polar Explore polar functions of r in terms of an
angle . Example:
Quadratic
Explorer
Explore the properties of quadratic
equations and test your knowledge.
Sequence Explore sequence functions, where U is
defined in terms of n, or in terms of
previous terms in the same or another
sequence, such as and .
Example: , and
Solve Explore equations in one or more real-
valued variables, and systems of equations.
Example:
Spreadsheet To solve problems or represent data best
suited to a spreadsheet.
Statistics 1Var Calculate one-variable statistical data (x)
Statistics 2Var Calculate two-variable statistical data
(x and y)
Triangle Solver Find the unknown values for the lengths
and angles of triangles.
Trig Explorer Explore the properties of sinusoidal
equations and test your knowledge.
App name Use this app to: (Cont.)
r 24cos=
U
n 1–
U
n 2–
U
1
0=
U
2
1=
U
n
U
n 2–
U
n 1–
+=
x 1+ x
2
x–2–=