Welcome to issue 181 of the HWN, a newsletter covering developments in the Haskell community. This release covers the week of May 1 to 7, 2011. Announcements Last week I failed to note the announcement [http://goo.gl/ApClU] of a new version of Leksah (0.10.0). If you haven't yet, give Leksha a test run and send some feedback! Ketil Malde started a thread [http://goo.gl/Prlu2] about Robert Harper's thoughts on monads and laziness. Hakim Cassimally extended an invitation [http://goo.gl/QIjcF] to anyone living in the Northwest UK for Tuesday May 31st to Geekup's first ever "Functional Programming Night". Andy announced [http://goo.gl/uCEn1] a new release of Manatee (0.2.1). Quotes of the Week * hpc: [SPOILER] You can check wikipedia for the definition of fibonacci sequences if you get stuck after half an hour * pmetzger: it is always possible to make an algorithm slower. just give it to a CS freshman to code up. * kmc: ghc -XMixfixOperators -XDependentTypes -XMakeMeASandwich * pmetzger: I have my password tattooed to my forehead. that way when I forget it others can tell me what it is. * alexbagel: i find that my first 26 variables are always easy to name. after that it becomes a bit harder. * Eric Kow: Haskell is a good fit for me because I tend to practise Doh!-oriented programming Top Reddit Stories * More points for lazy evaluation Domain: augustss.blogspot.com, score: 56, comments: 24 On Reddit: http://goo.gl/qecQ1 Original: http://goo.gl/OnJXx * iterIO: iteratee-based IO with pipe operators, courtesy David Mazieres Domain: haskell.org, score: 43, comments: 15 On Reddit: http://goo.gl/YzPJn Original: http://goo.gl/6WQAk * Monad comprehensions are finally in GHC Domain: self.haskell, score: 37, comments: 32 On Reddit: http://goo.gl/1Rjnw * Horner's Rule Domain: patternsinfp.wordpress.com, score: 34, Comments: 2 On Reddit: http://goo.gl/A1wYo Original: http://goo.gl/zeC1f * Patent 5,893,120 reduced to mathematical formulae (via Haskell) Domain: paulspontifications.blogspot.com, score: 31, comments: 13 On Reddit: http://goo.gl/PmB4K Original: http://goo.gl/QknmV * Custom Haskell mug! Domain: imgur.com, score: 31, comments: 6 On Reddit: http://goo.gl/lD388 Original: http://goo.gl/bzZR8 * Differences between 'data' and 'newtype' ... in pictures Domain: stackoverflow.com, score: 31, comments: 2 On Reddit: http://goo.gl/5YaSo Original: http://goo.gl/KQiJv * Haskell: not pure enough? Domain: blog.ezyang.com, score: 30, comments: 19 On Reddit: http://goo.gl/6v28x Original: http://goo.gl/zsfSq * Galois is hiring computer scientists Domain: corp.galois.com,score: 27, comments: 28 On Reddit: http://goo.gl/ToeJ0 Original: http://goo.gl/osjJY * Fancy comparison of Data values Domain: pnyf.inf.elte.hu, score: 26, comments: 18 On Reddit: http://goo.gl/BlFVl Original: http://goo.gl/RuMKT Top StackOverflow Questions * Ordering of parameters to make use of currying votes: 43, answers: 3 Read on SO: http://goo.gl/7LnBJ * Difference between 'data' and 'newtype' in Haskell votes: 29, answers: 2 Read on SO: http://goo.gl/KQiJv * Haskell: why the convention to name a helper function "go"? votes: 24, answers: 3 Read on SO: http://goo.gl/CE1O7 * How do you design programs in Haskell or other functional programming languages? [migrated] votes: 24, answers: 0 Read on SO: http://goo.gl/IW7Z5 * Haskell Graphics Library that works in GHCi on MacOS X votes: 19, answers: 3 Read on SO: http://goo.gl/VZGAK About the Haskell Weekly News To help create new editions of this newsletter, please send stories to dstcruz@gmail.com. Until next time, Daniel Santa Cruz