Prefix

Prefix[f[expr]] prints with f[expr] given in default prefix form: f @ expr.

Prefix[f[expr], h] prints as hexpr.

Prefix[expr, h, precedence, grouping] can be used to specify how the output form should be parenthesized.

See the notes for Infix about precedence and grouping.

See The Mathematica Book: Section 2.8.16.

See also: Infix, Postfix.

Further Examples