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一人类在生产劳动和日常生活中到处都离不开计算,因此作为对脑力劳动的一种辅助,人们创造了各种各样的计算工具。原始的计算工具就是手、纸和笔。往后是算筹与算盘。1614年耐普尔发明了对数,就产生了近代的计算尺。虽然计算工具逐年得到改进,但是随着生产力的发展,它远不能满足实际的要求。为了在脑力劳动方面实行机械化,
A human being can’t do calculations everywhere in production labor and daily life. Therefore, as an aid to mental labor, people have created a variety of calculation tools. The original calculation tools are hand, paper and pen. The calculations and calculations are later. In 1614, Napier invented the logarithm and produced a modern slide rule. Although the calculation tools have been improved year by year, with the development of productivity, it is far from meeting the actual requirements. In order to implement mechanization in mental work,