数学

🔗連結

• $y_1=A_1{x}_1,y_2=A_2{x}_2$のとき、$\left(\begin{array}{c}{y}_1\\ y_2\end{array}\right)=blockdiag(A_1,A_2)\left(\begin{array}{c}{x}_1\\ x_2\end{array}\right)$
• $y_1=A{x}_1,y_2=A{x}_2$のとき、$\left(\begin{array}{cc}{y}_1& y_2\end{array}\right)=A\left(\begin{array}{cc}{x}_1& x_2\end{array}\right)$
• $y_1=A_{1}x,y_2=A_{2}x$のとき、$\left(\begin{array}{c}{y}_1\\ y_2\end{array}\right)=\left(\begin{array}{c}{A}_1\\ A_2\end{array}\right)x$