The two sets of formulas for chord and are methods are derived by using vector algebraic method and some examples are listed for calculating and contrasting.
用矢量代数方法导出了弦步法与弧步法两组公式并作了例算对比。
The two classes of high distinguishing ability of similarity measures between Vague sets are presented, and an example is used to interpret that these formulas are practical.
提出两类高区能力的Vague集之间的相似度量公式，应用实例表明它们是实用的。
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