haskell语言学习的书，内容简易，适合和入门学习。 Haskell是一种函数编程语言. 1980年代以前对函数编程有很多研究, 但不同的研究者使用各自不同的语法记号, 一起交流时造成一些不便. 后来1987年的时候, 在FPCA 87会议上制定了统一的Haskell语言. Haskell吸收了各家的长处, 是一种纯粹的函数编程语言

-haskell language learning books, the contents of simple, suitable and started learning. Haskell is a functional programming language. Until the 1980s, many studies on the functional programming, but different researchers to use their different syntax notation, along with the exchange caused some inconvenience. Later, in 1987, when the meeting in the FPCA' 87 developed on a unified Haskell language. Haskell absorbed the merits of each speaker, is a purely functional programming language