Antialiasing is a Style option which specifies whether antialiasing should be done in rendering graphics.
BeginPackage["context`"] makes context` and System` the only active contexts. BeginPackage["context`", {"need_1`", "need_2`", ...}] calls Needs on the need_i.
CapForm
(Built-in Mathematica Symbol) CapForm[type] is a graphics primitive that specifies what type of caps should be used at the ends of lines, tubes, and related primitives.
ChartStyle is an option for charting functions that specifies styles in which chart elements should be drawn.
Chop
(Built-in Mathematica Symbol) Chop[expr] replaces approximate real numbers in expr that are close to zero by the exact integer 0.
ColorSetter[color] represents a color setter which displays as a swatch of the specified color and when clicked brings up a system color picker ...
ControllableModelQ[ss] yields True if the StateSpaceModel object ss is controllable, and False otherwise.
ControlType is an option for Manipulate and related functions that specifies what type of controls should be displayed.
EndPackage[] restores $Context and $ContextPath to their values before the preceding BeginPackage, and prepends the current context to the list $ContextPath.
GroupCentralizer[group, g] returns the centralizer of the element g in group.