def f(x: Float): Float = {

    def factorial(x: Int): Int = if (x <= 1) 1 else x * factorial(x - 1)

    def compute_exp(x: Float, count: Int = 9): Float = {
      if (count <= 1) x
      else (Math.pow(x, count) / factorial(count)).toFloat + compute_exp(x, count - 1)
    }
    compute_exp(x)+1
  }