Английская Википедия:Binade
In software engineering and numerical analysis, a binade is a set of numbers in a binary floating-point format that all have the same sign and exponent. In other words, a binade is the interval <math>[2^e, 2^{e + 1})</math> or <math>(-2^{e + 1}, -2^e]</math> for some integer value <math>e</math>, that is, the set of real numbers or floating-point numbers <math>x</math> of the same sign such that <math>2^e \leq |x| < 2^{e + 1}</math>.[1][2][3]
Some authors use the convention of the closed interval <math>[2^e, 2^{e + 1}]</math> instead of a half-open interval,[4] sometimes using both conventions in a single paper.[5] Some authors additionally treat each of various special quantities such as NaN, infinities, and zeroes as its own binade,[6] or similarly for the exceptional interval <math>(0, 2^{\mathrm{emin}})</math> of subnormal numbers.[7]
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