rounding error

"Rounding errors" occur due to the limitations of representing real numbers precisely, often leading to small discrepancies in calculations.

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Definition

C1Mathematics

(technical, academic)The difference between an exact mathematical value and its approximation due to rounding.

Example

  • The rounding error became significant when summing a large sequence of numbers.
  • Calculations involving floating-point arithmetic often introduce rounding errors.

B2Finance

(informal)A small, negligible amount of money compared to a much larger sum.

Example

  • In the context of the company's billion-dollar budget, a few hundred dollars is just a rounding error.
  • The extra cost was considered a rounding error in the grand scheme of the project.

Similar

Terms that have similar or relatively close meanings to "rounding error":

absolute errorround offcumulative errorround numberround inround upfloating pointmargin of errorrounded downrounded upin errorfloating-point number