significant figures

(redirected from Sig-figs)

significant figures

or

significant digits

pl n
1. (Mathematics) the figures of a number that express a magnitude to a specified degree of accuracy, rounding up or down the final figure: 3.141 59 to four significant figures is 3.142.
2. (Mathematics) the number of such figures: 3.142 has four significant figures. Compare decimal place2
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