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See the recommended documentation of this function
sign
符号関数
説明
X=sign(A) は
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.
例
sign(rand(2,3)) sign(1+%i)
参照
- abs — 絶対値, 大きさ
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