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Scilabヘルプ >> Elementary Functions > matrixoperations > sign

sign

符号関数

呼び出し手順

X = sign(A)

引数

A

実数または複素数の行列. A may be sparse.

X

実数または複素数の行列

説明

X = sign(A)A(i,j)の符号からなる行列を返します. Aが複素数の場合, sign(A) = A./abs(A) 関数となります.

sign(rand(2,3))
sign(1+%i)
sign(sprand(8,3,0.3,"normal"))

参照

  • abs — 絶対値, 大きさ
  • csgn — 複素数の実部のベクトル符号を返す
  • signm — 行列符号関数

履歴

VersionDescription
6.0 Extension to sparse matrices
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<< prod matrixoperations signm >>

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