送交者: steven 于 2005-1-11, 14:20:08:
回答: 谢谢你指出。建议你用标题慎重一点。 由 鲁晨光 于 2005-1-11, 13:08:03:
your 信息 = log (0/x), if x is not 0, what is your 信息? What if x is also 0? Your expression doesn't even have a meaning.
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