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based on an earlier version of the Wolfram Language.
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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.
Display f[x] in prefix form:
Use a special character as a prefix operator:
Display f[x] in prefix form:
In[1]:=
Click for copyable input
Out[1]=
 
Use a special character as a prefix operator:
In[1]:=
Click for copyable input
Out[1]=
New in 1