• Question: I don't understand your joke, what does it mean?

    Asked by Masuma to Huw on 11 Mar 2015. This question was also asked by 284appb35.
    • Photo: Huw Williams

      Huw Williams answered on 11 Mar 2015:

      Hi Masuma,

      it’s a puzzle to solve but here’s a hint. πŸ™‚

      √(-1) = I
      Ξ£ = Sum