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significant figure

mathematic

"Significant figures" are crucial in representing the precision and accuracy of numerical measurements in various scientific fields.

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Definition

C1Measurement

(technical, academic)Digits in a number that reflect the precision of a measurement, excluding leading zeros and sometimes trailing zeros.

Example

  • In the number 123.45, all five digits are significant figures.
  • The number 0.00456 has three significant figures: 4, 5, and 6.

Similar

Terms that have similar or relatively close meanings to "significant figure":

figure onround numberdecimal point