# Tag Info

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I do not understand what the accuracy of $1$ part in $10^{14}$ means. [...] reviewed the definitions of accuracy and error [...] In definitions of "accuracy" or "error" you should have noticed mentioning of the true value of some particular quantity, referring to the trial(s) under consideration, and the corresponding, commensurate value(s), ...

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out context, you can't state. But , if it is used with a class of numbers ending with 2 zeros, in most cases, it implies it has only 3 significant digits. Counterexample: a list of last years of the 29th century ( 5 significant digits )

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It have 5 significant figures, as the zeros are present on right hand side of a numbers .

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