({{, (RefLink[SubPlus, paclet:ref/SubPlus])[expr] 
displays as (SubPlus[expr]).}})

OpenersNotesSection(Spacer1)Details

(RefLink[SubPlus, paclet:ref/SubPlus])[expr] can be entered using (Key1[ctrl, _]) and (Key0[+]).

(RefLink[SubPlus, paclet:ref/SubPlus])[expr] remains unchanged by evaluation.

OpenersPrimaryExamplesSection(Spacer1)Examples  (3)

OpenersExampleSection0(Spacer1)Basic Examples  (2)

(RefLink[SubPlus, paclet:ref/SubPlus])[expr] is formatted as expr with a plus sign subscript:

SubPlus[x]

Define a meaning for (RefLink[SubPlus, paclet:ref/SubPlus]) in a particular case:

SubPlus/:Power[SubPlus[0],-1]:=Infinity

1/(SubPlus[0])

Clear definitions:

Clear[SubPlus]

OpenersExampleSection2(Spacer1)Applications  (1)

Define a limit function that takes limit direction as part of the limit point:

myLimit[e_,x_->SubMinus[a_]]:=Limit[e,x->a,Direction->+1]

myLimit[e_,x_->SubPlus[a_]]:=Limit[e,x->a,Direction->-1]

Use it to compute directional limits:

myLimit[UnitStep[x],x->(SubMinus[0])]

myLimit[UnitStep[x],x->(SubPlus[0])]

({{DocumentationFooterIconsRelatedFunction.png, ({{See Also}, {(RefLink[SuperPlus, paclet:ref/SuperPlus])  ▪  (RefLink[Subscript, paclet:ref/Subscript])  ▪  (RefLink[SubMinus, paclet:ref/SubMinus])  ▪  (RefLink[SubStar, paclet:ref/SubStar])  ▪  (RefLink[Style, paclet:ref/Style])}})}})

({{DocumentationFooterIconsRelatedTutorial.png, ({{Tutorials}, {▪(RefLinkPlain[Operators without Built-in Meanings, paclet:tutorial/OperatorsWithoutBuiltInMeanings])}})}})

({{DocumentationFooterIconsRelatedGuide.png, ({{Related Guides}, {▪(RefLinkPlain[Symbolic Notational Forms, paclet:guide/SymbolicNotationalForms])}})}})