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“树状图”在华东师大版新教材中,大量运用到规则事件机会的分析中,由它能很直观的得到结果.运用“树状图”这一工具,可将一些较繁、难的问题的求解难度降低.
“Tree map” in the East China Normal University version of the new textbook, a large number of the use of regular events in the analysis of the opportunity, it can be very intuitive to get the results. The use of “ tree diagram” this tool can be some The difficulty of solving more complex and difficult problems is reduced.