Blank (Built-in Mathematica Symbol)

_or Blank[] is a pattern object that can stand for any Mathematica expression. _h or Blank[h] can stand for any expression with head h.

Center (Built-in Mathematica Symbol)

Center is a symbol that represents the center for purposes of alignment and positioning.

CompoundExpression (Built-in Mathematica Symbol)

expr_1; expr_2; ... evaluates the expr_i in turn, giving the last one as the result.

Default (Built-in Mathematica Symbol)

Default[f] gives the default value for arguments of the function f obtained with a _. pattern object. Default[f, i] gives the default value to use when _. appears as the ...

DelimiterFlashTime (Built-in Mathematica Symbol)

DelimiterFlashTime is an option for cells and notebooks that specifies how long in seconds a delimiter should flash when its matching delimiter is entered.

NotebooksMenu (Built-in Mathematica Symbol)

NotebooksMenu is a global option that specifies which recently opened notebooks are listed under the File menu.

PutAppend (Built-in Mathematica Symbol)

expr >>> filename appends expr to a file. PutAppend[expr_1, expr_2, ..., " filename"] appends a sequence of expressions expr_i to a file.

SampledSoundList (Built-in Mathematica Symbol)

SampledSoundList[{a_1, a_2, ...}, r] is a sound primitive that represents a sound whose amplitude has levels a_i sampled r times a second.

StandardForm (Built-in Mathematica Symbol)

StandardForm[expr] prints as the standard Mathematica two-dimensional representation of expr.

Subtract (Built-in Mathematica Symbol)

x - y is equivalent to x + (-1*y).