y*****w
发帖数: 1350 | 1 1/(x1-c) + 1/(x2-c) + 1/(x3-c) + ... + 1/(xn -c),
where x1, x2, ..., xn are elements of a list, each with an assigned known
value,
and c is a constant. 能不能把上面的式子approximate到用这个list的均值什么的来
表达？
Thanks! | s*******p
发帖数: 5 | 2 only if Xi << c
the above approximately equals to -n/c[ 1 + mean(xi)] | s*******p
发帖数: 5 | 3 typo: missing c
the above approximately equals to -n/c[ 1 + mean(xi)/c] |
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