L.S., I know the TIOBE index[0] is not very scientific, but it is nice to see Haskell moving up in the TIOBE Index. From tiobe.com: " TIOBE Index for November 2016 November Headline: Is Haskell finally going to hit the top 20? Some people say that Haskell is the most mature purely functional programming language available nowadays. It has quite a long history, dating back from 1990 and its community is growing, although slowly. This month Haskell is only 0.255% away from the top 20 at position 23. Let's see what happens the next few months. " Haskell ranked 34th last month. Regards, Henk-Jan van Tuyl [0] http://www.tiobe.com/tiobe-index/ -- Folding@home What if you could share your unused computer power to help find a cure? In just 5 minutes you can join the world's biggest networked computer and get us closer sooner. Watch the video. http://folding.stanford.edu/ http://members.chello.nl/hjgtuyl/tourdemonad.html Haskell programming --