applicative

gistfile1.scala

def connect[A,B,C](f1: A => B, f2: A => B, f3: B => B => C): (A => C) = x => { 
  f3(f1(x))(f2(x))
}

def add2 = (x:Int) => x + 2

def multi3 = (x:Int) => x * 3

def addThem = (x:Int) => (y:Int) => x + y

val f = connect(add2, multi3, addThem)

//what's the result
f(3)