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Re:有了公式就蛮简单的了。注意上面有一步可能不小心写错了哦In Reply To:有了公式就蛮简单的了。 Posted by:19891212 at 2008-08-25 18:25:16 根据a[n-1]+a[n+1]-2a[n]-2c[n]=0 => a[n+1]-2c[n]-a[n]=a[n]+2c[n]-a[n-1] 更正为： 根据a[n-1]+a[n+1]-2a[n]-2c[n]=0 => a[n+1]-a[n]=a[n]+2c[n]-a[n-1] Followed by:
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