区间表示法
interval notation A concise way to represent sets of real numbers, e.g., $(a, b)$ for an open interval, $[a, b]$ for a closed interval.
CSCA 数学 考试术语
interval notation A concise way to represent sets of real numbers, e.g., $(a, b)$ for an open interval, $[a, b]$ for a closed interval.
CSCA 数学 考试术语