\ddot{s}_{\overline{n}|}=(1+i)s_{\overline{n}|}-1
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Recent Referers:
  1. http://plaza.rakuten.co.jp/actuarymath/diary/
  2. http://book.geocities.jp/actuary_math/x.html
  3. http://blog.livedoor.jp/actuary_math/
  4. http://plaza.rakuten.co.jp/actuarymath
  5. http://plaza.rakuten.co.jp/actuarymath/diary/200808010000/