HP 38g Graphing Calculator - Manual (Page 206)

note
program
sketch
variable
vector
views
show the current meanings.
Text that you write in the Notepad or in the Note view for
a specific aplet.
A reusable set of instructions that you record using the
Program editor.
A drawing that you make in the Sketch view for a specific
aplet.
The name of a number, list, matrix, note, or graphic that
is stored in memory. Use {{STO^}} to store and use | var |
to retrieve.
A one-dimensional array of values separated by commas
(periods if the Decimal Mark is Comma) and enclosed in
single brackets. Created and manipulated by the Matrix
catalog and editor.
The possible contexts for an aplet : Plot, Plot Setup,
Numeric, Numeric Setup, Symbolic, Symbolic Setup,
Sketch, Note, and special views like split screens.
9-10 Reference Information