《周易与历法》介绍了八卦是在古天女学的基础上发现的，它是与天文历纪协同发展起来的，也是古代天文学历数的最初形式。因此，通过古代历数，可以证实八卦与天文学的兼容关系。八卦与六十花甲数一起，不仅可以动态反映天象，而且还能推演历数。
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