:7:1: error: • No instance for (GHC.Show.Show Float) arising from a use of ‘System.IO.print’ • In a stmt of an interactive GHCi command: System.IO.print it :15:1: error: • No instance for (GHC.Show.Show Float) arising from a use of ‘System.IO.print’ • In a stmt of an interactive GHCi command: System.IO.print it