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单词 Machine precision
释义

Machine precision

英语百科

Machine epsilon

(重定向自Machine precision)

Machine epsilon gives an upper bound on the relative error due to rounding in floating point arithmetic. This value characterizes computer arithmetic in the field of numerical analysis, and by extension in the subject of computational science. The quantity is also called macheps or unit roundoff, and it has the symbols Greek epsilon \epsilon or bold Roman u, respectively.

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