Significant Figures Video显着的数字视频

This neat little video explains the importance of significant figures, rounding, accuracy and precision.这整齐小视频解释的重要性，显着的数字，四舍五入，准确度和精密度。 Find out why adding a single drop of water (of about 0.05 ml) to a cup of coffee that is about 200 ml should never be written as 200.05 ml找出为何加入一个单一的一滴水（约0.05毫升） ，一杯咖啡，这是约200毫升绝不应被写入为二百点零五毫升

It’s all about the errors and the significance of the digits in each measurement.它的所有有关的错误和意义的数字在每个测量。 The video also provides a useful introduction to scientific notation and underpins the origins of the Sig Figs website you are reading now, because so many times the news and other media don’t seem to录像还提供了一个有用的介绍科学记数和underpins起源的SIG的无花果网站您正在阅读的现在，因为这么多次的新闻和其他媒体似乎并不 understand significant digits明白显着的数字 and get it wrong again and again.并获得了错，一次又一次。 Just check out the archives to see exactly what I mean!只要勾选出来的档案看，正是我的意思！

By the way, there’s an online significant figures calculator由的方式，有一个显着的数字，在线计算器 here这里 It works very well and has a nice example to help you.它的工程非常好，有一个很好的例子，以帮助您。 As it’s fairly new, please let me know how you get on with it in the comments below.因为它的相当新，请让我知道您如何就与它在评论如下。