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用字母表示数是数学的一大进步,是代数学中的一个基本思想,它使得数学具有最简洁的语言,更便于人们思考数学问题、解决数学问题,成为一切现代科学不可缺少的有力
The use of letters to represent numbers is a major advancement in mathematics. It is a basic idea in algebra. It makes mathematics have the most concise language, and it is easier for people to think about mathematics and solve mathematical problems. It becomes an indispensable force for all modern sciences.