Details

Infix[expr,h,precedence,grouping] can be used to specify how the output form should be parenthesized.
Precedence levels are specified by integers. In OutputForm, some precedence levels are:
x.y.z 490

x y z 400

x+y+z 310

x==y 290

x=y 40
Possible grouping (associativity) specifications are:

	NonAssociative	not associative—always parenthesized
	None	always associative—never parenthesized
	Left	left associative (e.g. (a/b)/c)
	Right	right associative (e.g. a^(b^c))

The special input form e₁~f~e₂ is directly interpreted as f[e₁,e₂] and does not involve Infix. »

Examples

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Display f[x,y] in infix form:

Use a custom string as the infix operator:

The output from Infix contains invisible tagging that preserves its meaning:

Copying the output and using it in a input cell produces the same result:

Typing in a visually identical result from scratch will produce a different result:

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