$$$\frac{\left[\begin{array}{cc}2 \sqrt{2} & 2 \sqrt{2}\end{array}\right]}{4}$$$

$$$\frac{\left[\begin{array}{cc}2 \sqrt{2} & 2 \sqrt{2}\end{array}\right]}{4}$$$を計算せよ。

行列の各成分にスカラーを掛けよ:

$$${\color{Chartreuse}\left(\frac{1}{4}\right)}\cdot \left[\begin{array}{cc}2 \sqrt{2} & 2 \sqrt{2}\end{array}\right] = \left[\begin{array}{cc}{\color{Chartreuse}\left(\frac{1}{4}\right)}\cdot \left(2 \sqrt{2}\right) & {\color{Chartreuse}\left(\frac{1}{4}\right)}\cdot \left(2 \sqrt{2}\right)\end{array}\right] = \left[\begin{array}{cc}\frac{\sqrt{2}}{2} & \frac{\sqrt{2}}{2}\end{array}\right]$$$

$$$\frac{\left[\begin{array}{cc}2 \sqrt{2} & 2 \sqrt{2}\end{array}\right]}{4} = \left[\begin{array}{cc}\frac{\sqrt{2}}{2} & \frac{\sqrt{2}}{2}\end{array}\right]\approx \left[\begin{array}{cc}0.707106781186548 & 0.707106781186548\end{array}\right]$$$A