清代華蘅芳《學算筆談》：“名位之數，既俱可用自一至九之各數記之，則其空位當以零字記之，或作一圈以代零字亦可。”

來源: chufang 於 2023-08-30 11:02:53 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.