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Scilab manual >> Elementary Functions > Floating point > frexp

frexp

浮動小数点数を2を基底とする指数部と仮数部に分解する

呼び出し手順

[f,e]=frexp(x)

パラメータ

x

実数のベクトルまたは行列

f

実数の値の配列, 通常は 0.5 <= abs(f) の範囲 < 1.

e

以下の式を満たす整数の配列: x = f.*2.^e

説明

この関数は ANSI C 関数 frexp()に一致します. xの中の 0 は f=0 かつ e=0となります.

[f,e]=frexp([1,%pi,-3,%eps])

参照

<< floor Floating point int >>

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Last updated:
Wed Jan 26 16:25:03 CET 2011