HP NW280-200X User Manual page 534

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command An operation for use in programs.
Commands can store results in
variables, but do not display results.
expression A number, variable, or algebraic
expression (numbers plus functions)
that produces a value.
function An operation, possibly with
arguments, that returns a result. It
does not store results in variables. The
arguments must be enclosed in
parentheses and separated with
commas.
Home view The basic starting point of the
calculator. Most calculations can be
done in Home view. However, such
calculations only return numeric
approximations. For exact results, you
can use the CAS. You can share
results and variables between the
CAS and Home view (and vice
versa).
input form A screen where you can set values or
choose options. Another name for a
dialog box.
key A key on the keypad (as opposed to
a button, which appears on the
screen and needs to be tapped to be
activated).
Library A collection of items, more speficially,
the the apps. See also catalog.
list A set of values separated by commas
and enclosed in braces. Lists are
commonly used to enter statistical
data and to evaluate a function with
multiple values. Created and
manipulated by the List Editor and.
matrix A two-dimensional array of values
separated by commas and enclosed
in nested square brackets. Created
and manipulated by the Matrix Editor.
Vectors are also handled by the
Matrix Editor.