WeightingFunction is an option to the functions SetEdgeWeights and SetVertexWeights that tells the functions how to compute edge weights and vertex weights, respectively.
CreateNotationRules is a possible value for the Action option to Notation, Symbolize and InfixNotation.
RemoveNotationRules is a possible value for the Action option to Notation, Symbolize and InfixNotation.
WeakMixingAngle is a physical constant.
Order
(Built-in Mathematica Symbol) Order[expr_1, expr_2] gives 1 if expr_1 is before expr_2 in canonical order, and -1 if expr_1 is after expr_2 in canonical order. It gives 0 if expr_1 is identical to expr_2.
ResetDirectory[] resets the current working directory to its previous value.
$FrontEnd is a global variable that specifies to what front end object, if any, the kernel is currently connected.
Unicode: F7D1. Alias: Esc alt Esc.
Unicode: F3A8.
Unicode: F3AE.