Unicode: F526. x y is by default interpreted as ShortLeftArrow[x,y]. Infix arrow operator. Extensible character.
Unicode: 0F3D4. Aliases: Esc ue Esc. Infix operator with built-in evaluation rules. uv is by default interpreted as UndirectedEdge[u,v].
Unicode: 2912. Infix arrow operator. x ⤒ y is by default interpreted as UpArrowBar[x,y]. Extensible character.
Unicode: 2240. Infix operator. x ≀ y is by default interpreted as VerticalTilde[x,y]. Used in mathematics to mean wreath product.
AllowScriptLevelChange is an option for fractions and grids that controls whether certain operators, such as \[Sum], \[Product], and \[Integral], always appear smaller than ...
FontProperties -> {opt_1 -> val_1, opt_2 -> val_2} specifies font properties.
GroupGenerators[group] returns a list of generators of group.
IncludeFileExtension is an option for notebooks that specifies whether the suffix ".nb" is automatically appended to a notebook's name when it is first saved.
MorphologicalEulerNumber[image] computes the morphological Euler number of regions in a binary image.MorphologicalEulerNumber[image, t] treats values above t as foreground.
PrintAction is an option for notebooks that specifies the action taken when a Print[] command is evaluated by the kernel.