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Scilabヘルプ >> Sparses Matrix > Sparse Matrix Manipulation > spzeros

spzeros

疎ゼロ行列

呼び出し手順

sp=spzeros(nrows,ncols)
sp=spzeros(A)

パラメータ

nrows

整数 (行数)

ncols

整数 (列数)

A

疎行列

sp

疎ゼロ行列

説明

sp=spzeros(nrows,ncols)は, nrows 行, ncols 列の 疎ゼロ行列を返します. (sparse([],[],[nrow,ncols])と等価です)

sp=spzeros(A) は, Aと同じ次元を有する疎ゼロ行列を返します. [m,n]=size(A)の場合, spzeros(m,n) および spzeros(A) は等価です. なお, spzeros(3)spzeros(3,3)と等しくなりません.

m=spzeros(2,2)
a=rand(10,12);
m=spzeros(a)
sum(spzeros(1000,1000))

参照

  • sparse — 疎行列を定義
  • full — 疎行列を通常の行列に変換する
  • eye — 単位行列
  • speye — 疎単位行列
  • spones — 疎行列
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Last updated:
Fri Apr 11 14:18:57 CEST 2014