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Scilabヘルプ >> Elementary Functions > isempty

isempty

変数が空の行列または空のリストかどうかを調べる

呼び出し手順

t=isempty(x)

引数

x

ベクトルまたは行列またはリスト

t

論理値

説明

isempty(x)xが空の行列または 空のリストの場合に真を返します.

isempty() can be overloaded for custom t-lists and m-lists typeof.

a=1
isempty(a(2:$))
isempty(find(rand(1:10)==5))

参照

  • [] — empty matrix. Array ranges destructor.
  • emptystr — 長さ0の文字列
  • size — オブジェクトの大きさ
  • length — オブジェクトの長さ

履歴

VersionDescription
6.0.2 isempty() can now be overloaded for custom tlist and mlist typeof.
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