Edit Stylesheet edits the style definitions for the current notebook.
AbsoluteTiming[expr] evaluates expr, returning a list of the absolute number of seconds in real time that have elapsed, together with the result obtained.
ClearAttributes[s, attr] removes attr from the list of attributes of the symbol s.
CopyDirectory["dir_1", "dir_2"] copies the directory dir_1 to dir_2.
ExcludedForms is an option for FullSimplify which can be set to a list of patterns for expressions that should not be touched if they are encountered at intermediate steps in ...
FileDate["file"] gives the date and time at which a file was last modified. FileDate["file", " type"] gives information on the specified type of date associated with a file.
FormBox
(Built-in Mathematica Symbol) FormBox[boxes, form] is a low-level box construct which displays as boxes but specifies that rules associated with form should be used to interpret boxes on input.
Head
(Built-in Mathematica Symbol) Head[expr] gives the head of expr.
Heads
(Built-in Mathematica Symbol) Heads is an option for functions which use level specifications that specifies whether heads of expressions should be included.
LinkObject["name", n_1, n_2] is an object that represents an active MathLink connection for functions such as LinkRead and LinkWrite.