For a good counter counter example to this guy's rant: Functional Payout Framework used for exotic options pricing at Barclays Capital, developed entirely in H

For a good counter counter example to this guy's rant: Functional Payout Framework used for exotic options pricing at Barclays Capital, developed entirely in Haskell: http://www.lexifi.com/downloads/frankau.pdf http://www.lexifi.com/downloads/frankau.pdf