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Scilabヘルプ >> Elementary Functions > Exponential > log

log

自然対数

呼び出し手順

y=log(x)

引数

x

定数ベクトルまたは定数行列

説明

log(x) は"要素毎の" 対数です. y(i,j)=log(x(i,j)). 行列の対数の場合, logmを使用してください.

exp(log([1,%i,-1,-%i]))

参照

  • exp — 要素毎の指数関数
  • logm — 正方行列の対数
  • log10 — 対数
  • ieee — 浮動小数点例外モードを設定
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