Documentation Publicon Reference Special Characters
PlusMinus
± \[PlusMinus]
• Alias: +-. • Prefix or infix operator. • x is by default interpreted as PlusMinus[x]. • x y is by default interpreted as PlusMinus[x, y].• See also: \[MinusPlus] .
+-
x is by default interpreted as PlusMinus[x]. 
y is by default interpreted as PlusMinus[x, y].