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Originally posted by jfili at 2011-06-29 20:23:18:
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soliton923: Ê®·Ö¸Ðлר¼ÒµÄ²ÎÓë~~~ 2011-06-28 23:19:35
hzsh2009(½ð±Ò+3): 2011-07-01 15:50:02
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hzsh2009

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Originally posted by pengyehui at 2011-06-28 21:37:31:
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1. ¼ÙÉèÌâÄ¿ÖеÄe^rt±íʾe^{rt}, Ôò ln(e^{rt}/(1+r)^t)=t(r-ln(1+r))Ç÷ÓÚÎÞÇ²»Ç÷ÓÚ0
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hzsh2009(½ð±Ò+2): 2011-07-01 15:50:12
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