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实数是中学生数学的重要概念之一,为使同学们深刻理解,牢固掌握,特说明如下: 一、无理数与有理数的区别有理数:整数和分数统称为有理数. 任何一个有理数都可以写成有限小数(整数可以看作小数点后面是数字0的小数)或循环小数的形式.
Real numbers are one of the important concepts of mathematics for middle school students. In order to make the students deeply understand and firmly grasp, special descriptions are as follows: 1. The difference between irrational and rational numbers Rational numbers: Integers and fractions are collectively called rational numbers. Any rational number can be written as a finite decimal number (integer). Can be seen as the decimal point followed by the decimal number 0) or in the form of a decimal.