作者boboptt (boboptt)
看板TransBioChem
标题[化学] significant figures 有效数字问题
时间Sun Jul 9 11:20:01 2006
有效数字含0问题
问题:
The total length of three rods with lengths 1500,233,and 600mm.
sol: 1500mm
233mm
600mm
-------
2383mm round to 2400mm and report as 2.4*10^3mm
为何答案2383最後要写成2400呢?
if the lengths had been reported as 150.,233,and600.mm,the correct answer
would have been 2383mm.
这又是为何呢?
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