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Operate

Operate
gives .
Operate
applies p at level n in the head of expr.
  • Operate effectively applies the functional operator p to the function f.
  • Operate is essentially a generalization of Apply, which allows you to apply an operator to the head of an expression, rather than simply to replace the head. »
Operate on the head of the expression with :
Use a pure function:
Operate on the head of the expression with :
In[1]:=
Click for copyable input
Out[1]=
 
Use a pure function:
In[1]:=
Click for copyable input
Out[1]=
Operate at level 1, the head of the expression (default):
Operate at level 2 (the head of the head of the expression):
Operate can be iterated:
Apply is a special case of Operate that replaces the head of the expression:
Operate followed by Through is a form of composition:
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