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Scilabヘルプ >> Polynomials > htrianr

htrianr

多項式行列の三角化

呼び出し手順

[Ar, U, rk] = htrianr(A)

パラメータ

A

多項式行列

Ar

多項式行列

U

ユニモジュラ多項式行列.

rk

整数, Aの通常ランク

説明

多項式行列 Aの三角化.

A[m,n] , m ≤ nです.

Ar=A*U

警告: "小さい"項の削除が行われます(関数コードを参照).

x = poly(0,'x');
M = [x ; x^2 ; 2+x^3]*[1, x-2, x^4];
[Mu,U,rk] = htrianr(M)
det(U)
M*U(:,1:2)

参照

  • hrmt — 多項式の最大公約数
  • colcompr — 多項式行列の列圧縮
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Last updated:
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