脑子经常卡壳。直接从e[3]的两种定义可以导出 d[3] = d[2] 或-2d[2]

来源: wxcfan123 于 2023-11-28 10:00:34 [旧帖] [给我悄悄话] 本文已被阅读：次

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