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Please note that the recommended version of Scilab is 6.0.1. This page might be outdated.
See the recommended documentation of this function

Scilab help >> Linear Algebra > proj

proj

投影

呼び出し手順

P = proj(X1,X2)

パラメータ

X1,X2

同じ列の数を有する実数の行列

P

実数の投影行列 (P^2=P)

説明

PX1に平行な X2への投影です.

X1=rand(5,2);X2=rand(5,3);
P=proj(X1,X2);
norm(P^2-P,1)
trace(P)    // This is dim(X2)
[Q,M]=fullrf(P);
svd([Q,X2])   // span(Q) = span(X2)

参照

  • projspec — スペクトル演算子
  • orth — 直交基底
  • fullrf — フルランク分解

作者

F. D.; ;

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Last updated:
Thu Mar 03 11:00:51 CET 2011