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Scilab help >> Elementary Functions > Exponential > log2

log2

2を底とする対数

呼び出し手順

y=log2(x)

パラメータ

x

ベクトルまたは行列

説明

2を底とする対数.x がベクトルの場合: log2(x)=[log2(x1),...,log2(xn)].

2.^log2([1,%i,-1,-%i])

参照

  • log — 自然対数
  • hat — (^) 累乗
  • ieee — 浮動小数点例外モードを設定
  • log10 — 対数
  • 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
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Last updated:
Tue Apr 02 17:37:31 CEST 2013