GompertzMakehamDistribution[\[Lambda], \[Xi]] represents a Gompertz distribution with scale parameter \[Lambda] and frailty parameter ...
ItemAspectRatio is an option for GraphicsGrid which specifies the ratio of height to width for the regions in which items are placed in the graphics grid.
ListDeconvolve[ker, list] gives a deconvolution of list using kernel ker.
LocalizeVariables is an option to Manipulate that determines whether the values of variables associated with controls should be localized.
Locked
(Built-in Mathematica Symbol) Locked is an attribute that, once assigned, prevents modification of any attributes of a symbol.
NameQ
(Built-in Mathematica Symbol) NameQ["string"] yields True if there are any symbols whose names match the string pattern given, and yields False otherwise.
NumberString represents the characters of a number in StringExpression.
OutputStream["name", n] is an object that represents an output stream for functions such as Write.
p?test is a pattern object that stands for any expression which matches p, and on which the application of test gives True.
Pause
(Built-in Mathematica Symbol) Pause[n] pauses for at least n seconds.