How to fix my Fibonacci stream in Scala

Question

I defined a function to return Fibonacci stream as follows:

def fib:Stream[Int] = {
  Stream.cons(1,
    Stream.cons(2,
      (fib zip fib.tail) map {case (x, y)          


        

Answer 1

You can do it the other way:

lazy val fibs = {
  def f(a: Int, b: Int): Stream[Int] = a #:: f(b, a + b)
  f(0, 1)
}