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规和矩,原是我国古代匠人常用的工具,与今天的数学工具圆规和曲尺的构造基本相同,是用来绘制圆、方图形的。这两件使用简便、极其普通的工具,多以竹木制作,并不贵重,用途却十分广泛,在先秦时期,已经受到人们的格外器重。《世本·作篇》说:“垂作规、矩、准绳。”垂是舜的臣子,垂创造了规和矩,这属传说,无法考证。史家认为,夏朝是
Rules and moments, was originally used by ancient traders tools, and today’s mathematics tools compasses and ruler structure is basically the same, is used to draw circles, square graphics. These two easy-to-use, extremely ordinary tools, mostly made of bamboo, are not expensive and have a very wide range of uses. In the pre-Qin period, they were already given special attention by people. The book of the world says: “It is a rule, a moment, a criterion.” "It is Shun’s courtier who created the rules and moments, which is legend and can not be verified. Historians believe that the Xia Dynasty is