rounding error

[ˈraʊndɪŋ ˈɛrər]
nounpl: rounding errors
erro de arredondamento
1. The difference between an approximate value obtained by rounding and the exact mathematical value
The rounding error in the calculation was negligible for practical purposes.
O erro de arredondamento no cálculo foi negligenciável para fins práticos.
2. In computing and mathematics, the discrepancy that occurs when a number is rounded to fewer decimal places or significant figures
Accumulated rounding errors can lead to significant inaccuracies in complex computations.
Erros de arredondamento acumulados podem levar a imprecisões significativas em cálculos complexos.
3. The loss of precision resulting from representing numbers with limited decimal places in digital systems
Floating-point arithmetic often introduces rounding errors.
A aritmética de ponto flutuante frequentemente introduz erros de arredondamento.
This is a technical term commonly used in both Brazilian and American academic and professional contexts, particularly in mathematics, computer science, finance, and engineering. In Brazil, it is standard terminology in universities and technical institutions. The concept is crucial in discussions about numerical accuracy and computer programming.
Synonyms / Sinônimos
approximation errortruncation errorround-off errornumerical error
Antonyms / Antônimos
exact valueprecision

Regional Variations

General Brazilian
erro de arredondamento
Standard technical term used in mathematics and computing
São Paulo
erro de arredondamento
Commonly used in technical and academic contexts
Rio de Janeiro
erro de arredondamento
Standard usage in educational and scientific fields
Portugal
erro de arredondamento
Same term used; sometimes 'erro de aproximação' in informal contexts

Related Words

arithmeticnumerical analysisfloating-pointprecisionsignificant figuresapproximation

Related Idioms & Phrases

accumulate rounding errors
minimize rounding error
propagation of rounding errors
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