SN-1913 已核对来源，附原文与上下文。
如果有人做一个页面（类似 http://www.alloscomp.com/bitcoin/calculator.php 那个好用的计算器），预测下一次难度调整会调到多少，那就太好了。
It would be neat if someone had a page (like that handy calculator at http://www.alloscomp.com/bitcoin/calculator.php) that projects what the next difficulty adjustment will be.
预计难度调整倍数 =
projected difficulty adjustment multiplier =
blocks_since_last_adjustment / 2016
blocks_since_last_adjustment / 2016
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time_since_last_adjustment / 14_days
time_since_last_adjustment / 14_days
举例来说，如果只用了 3.5 天而不是 7 天就走完了到下次调整的一半路程，我们预计难度会翻倍：
For instance, if it already got half way to the next adjustment in only 3.5 days instead of 7, we would expect difficulty to double:
(1008/2016) / (3.5/14) = 0.5/0.25 = 2.0
(1008/2016) / (3.5/14) = 0.5/0.25 = 2.0
另外，它还可以显示下次调整预计发生的时间，以及上次调整是什么时候、调了多少。
Also, it could show the predicted time when the next adjustment will occur, and tell when the last adjustment was and how much it changed.
