Mathematica has `f[a,#,b]&`, for example, which is syntactic sugar for `Function[{x}, f[a,x,b]]`, i.e. the function that takes one argument and calls `f` with t

Mathematica has `f[a,#,b]&`, for example, which is syntactic sugar for `Function[{x}, f[a,x,b]]`, i.e. the function that takes one argument and calls `f` with that argument as the middle parameter and `a, b` as the first and last parameters. It's not quite what you're referring to, but it's similarly an extremely lightweight syntax.