Calculating Functional Programs

A good way of developing a correct program is to <em>calculate</em> it from its specification. Functional programming languages are especially suitable for this, because their referential transparency greatly helps calculation. We discuss the ideas behind program calculation, and illustr...

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書目詳細資料
主要作者: Gibbons, J
格式: Conference item
出版: School of Computing and Mathematical Sciences‚ Oxford Brookes University 1997
實物特徵
總結:A good way of developing a correct program is to <em>calculate</em> it from its specification. Functional programming languages are especially suitable for this, because their referential transparency greatly helps calculation. We discuss the ideas behind program calculation, and illustrate with an example (the <em>maximum segment sum</em> problem). We show that calculations are driven by <em>promotion</em>, and that promotion properties arise from <em>universal properties</em> of the data types involved.