OperatorApplied

OperatorApplied[f, n] represents an operator form of the function f of n arguments so that OperatorApplied[f, n][x1]...[xn] is equivalent to f[x1, ..., xn].

• OperatorApplied[f] represents an operator form of the function f of two arguments so that OperatorApplied[f][y][x] is equivalent to f[x, y].
• OperatorApplied[f, {i1, ..., in}] represents an operator form of the function f of n arguments so that OperatorApplied[f, {i1, ..., in}][x1]...[xn] is equivalent to f[xi1, ..., xin].
• OperatorApplied[f, k -> {i1, ..., in}] represents an operator form that takes k arguments.

Examples

Create a curried function:

op = OperatorApplied[f, 3];
op[a][b][c]
(* f[a, b, c] *)

Default two-argument form (swapped):

OperatorApplied[Divide][2][10]
(* 5 *)

Specify argument order:

OperatorApplied[f, {2, 1}][a][b]
(* f[b, a] *)

Please visit the official Wolfram Language Reference for more details.