数学

🔗連結

• $y_1 = A_1 x_1, y_2 = A_2 x_2$のとき、$\begin{pmatrix} y_1 \\ y_2 \end{pmatrix} = blockdiag(A_1, A_2) \begin{pmatrix} x_1 \\ x_2 \end{pmatrix}$
• $y_1 = A x_1, y_2 = A x_2$のとき、$\begin{pmatrix} y_1 & y_2 \end{pmatrix} = A \begin{pmatrix} x_1 & x_2 \end{pmatrix}$
• $y_1 = A_1 x, y_2 = A_2 x$のとき、$\begin{pmatrix} y_1 \\ y_2 \end{pmatrix}=\begin{pmatrix} A_1 \\ A_2 \end{pmatrix} x$