Not (Built-in Mathematica Symbol)

! expr is the logical NOT function. It gives False if expr is True, and True if it is False.

On (Built-in Mathematica Symbol)

On[symbol::tag] switches on a message, so that it can be printed. On["name"] switches on a named group of messages.On[s] switches on tracing for the symbol s. On[m_1, m_2, ...

OpenAppend (Built-in Mathematica Symbol)

OpenAppend["file"] opens a file to append output to it, and returns an OutputStream object.

OverscriptBox (Built-in Mathematica Symbol)

OverscriptBox[x, y] is the low-level box representation for OverscriptBox[x, y] in notebook expressions.

PointSize (Built-in Mathematica Symbol)

PointSize[d] is a graphics directive which specifies that points which follow are to be shown if possible as circular regions with diameter d. The diameter d is given as a ...

Repeated (Built-in Mathematica Symbol)

p .. or Repeated[p] is a pattern object that represents a sequence of one or more expressions, each matching p. Repeated[p, max] represents up to max expressions matching ...

Replace (Built-in Mathematica Symbol)

Replace[expr, rules] applies a rule or list of rules in an attempt to transform the entire expression expr. Replace[expr, rules, levelspec] applies rules to parts of expr ...

RuleDelayed (Built-in Mathematica Symbol)

lhs :> rhs or lhs :> rhs represents a rule that transforms lhs to rhs, evaluating rhs only after the rule is used.

Rule (Built-in Mathematica Symbol)

lhs -> rhs or lhs -> rhs represents a rule that transforms lhs to rhs.

Save (Built-in Mathematica Symbol)

Save["filename", symbol] appends definitions associated with the specified symbol to a file. Save["filename", " form"] appends definitions associated with all symbols whose ...