FrontEndDynamicExpression is a global front end option that specifies an expression to be dynamically updated whenever the front end is running.
FrontEndEventActions is an option for the notebook front end that gives a list of actions to perform when specified user-interface events occur.
FrontEndStackSize is a global option that specifies the size of the stack used to store data in the front end (Macintosh only).
Front
(Built-in Mathematica Symbol) Front is a symbol that represents the front of a graphic for purposes of placement and alignment.
FullDefinition[symbol] prints as the definitions given for symbol, and all symbols on which these depend.
Full
(Built-in Mathematica Symbol) Full is a setting used for certain options, typically indicating that a full range of values should be included.
FullSimplify[expr] tries a wide range of transformations on expr involving elementary and special functions, and returns the simplest form it finds. FullSimplify[expr, assum] ...
FunctionExpand[expr] tries to expand out special and certain other functions in expr, when possible reducing compound arguments to simpler ones. FunctionExpand[expr, assum] ...
Function[body] or body & is a pure function. The formal parameters are # (or #1), #2, etc. Function[x, body] is a pure function with a single formal parameter x. ...
FunctionSpace is an option for FindSequenceFunction and related functions that specifies the space of functions to consider for representations.