它的功能还包含计算三角函数，阶乘，排列和组合的计算。
Some of the features include trigonometry, factorials, permutations and combinations.
首先，将所有可以在测试环境中处理的事务排列和组合添加到表格中。
First you tabulate all the permutations and combinations of transactions that can be potentially processed in a test environment.
景观格局是大小和形状各异的景观要素在空间上的排列和组合形式，一般指空间格局。
Landscape Pattern is a spatial arrangement and combination form of various landscape elements, which are different in size and shape.
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