number decimal基础术语 有理数rational number 复数rational numbers 无理数 irrational number 复数irrational numbers 补充相关词汇 实数real number 整数integer 分数fraction 有限小数terminating decimal 无限循环小数repeating decimal /recurring decimal 无限不循环小数non-repeating non-terminating decimal 例句 A rational number can be expressed as a fraction of two integers. 有理数可以表示为两个整数的分数形式。 An irrational number is an infinite non-repeating decimal. 无理数是无限不循环小数。Fraction.java-CSDN博客