what do you mean

來源: 亞當撕蜜 於 2012-07-03 09:07:31 [] [博客] [舊帖] [給我悄悄話] 閱讀數 : (281 bytes)
回答: nothing's wrong with that picture. 由 趙飛燕 於 2012-07-03 09:01:31

i'm "now" older? i'm older every day, just like you are, and i'm wiser every day too, are you? lol...

good point on decelerating rate of relative change, so the second order derivative, the change of the rate of change matters too.

 

 

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