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2Â¥: Originally posted by shuxue0 at 2014-06-18 18:00:29
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2Â¥2014-06-18 18:00:29
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hank612

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Сľ³æ: ½ð±Ò+0.5, ¸ø¸öºì°ü£¬Ð»Ð»»ØÌû
Edstrayer: ½ð±Ò+5, ºÜ°ô£¬ºÜ¸øÁ¦£¡ 2014-06-19 14:39:15
Ö±½ÓÉϹéÄÉ·¨À².

ÏÈ»¯¼òÏÂÎÊÌâ, Èà ,
ÄÇôҪÇóÖ¤Ã÷ u_n * v_n=1.  

ÓÉÓÚ , ½áºÏ³õÖµÌõ¼þ u1=1, u2=a; v1=1, v2=b, Á¢µÃ: u_{n+1} =a* u_n, v_{n+1} =b* u_n,  

Òò´Ë, U(n+1)V(n+1)=a*b*U(n)V(n)=U(n)V(n).

ÓɹéÄɼÙÉè, U(n)V(n)=1, Ö¤±Ï.
We_must_know. We_will_know.
4Â¥2014-06-19 06:22:53
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