Q: How many digits should I use to represent measured or calculated data?

A: The number of significant digits should always make sense in view of the nature of the data and its intended use: neither too few to be useful nor too many—to avoid confusion and erroneous interpretations of the data’s accuracy.


Learn more about significant  digits in The Decline of Rounding, as published in the December 2012 issue of Analog Dialogue.


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