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MATLAB simulinkで行列を分解する小技

simulinkでのベクトルの分解

1次元ベクトルならばDemuxというブロックを用いて分解できます。

もっと言うとDemuxの出力数が入力のベクトルの倍数ならきちんと等倍してくれます。

image.png

等倍できない場合はこんな感じに末尾が足りない感じになります。

image.png

simulinkでの行列の分解

しかし,行列はDemuxでは分解できません。
concatenateで結合はできるのに,です。

従って例えば縦方向に分解したい時などは小技として次のようにベクトルをかけて縦列を取り出します。横列がほしければその転置を書けます。

image.png

参考情報

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