# 行列減算計算機

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## あなたの入力

$\left[\begin{array}{ccc}1 & 2 & -3\\2 & -3 & -5\\1 & 7 & 1\end{array}\right] - \left[\begin{array}{ccc}2 & -3 & 0\\1 & 1 & 5\\1 & 0 & -1\end{array}\right]$計算します。

## 解決

$\left[\begin{array}{ccc}\color{DarkCyan}{1} & \color{Peru}{2} & \color{DeepPink}{-3}\\\color{Purple}{2} & \color{Magenta}{-3} & \color{OrangeRed}{-5}\\\color{Red}{1} & \color{Blue}{7} & \color{Brown}{1}\end{array}\right] - \left[\begin{array}{ccc}\color{DarkCyan}{2} & \color{Peru}{-3} & \color{DeepPink}{0}\\\color{Purple}{1} & \color{Magenta}{1} & \color{OrangeRed}{5}\\\color{Red}{1} & \color{Blue}{0} & \color{Brown}{-1}\end{array}\right] = \left[\begin{array}{ccc}\color{DarkCyan}{\left(1\right)} - \color{DarkCyan}{\left(2\right)} & \color{Peru}{\left(2\right)} - \color{Peru}{\left(-3\right)} & \color{DeepPink}{\left(-3\right)} - \color{DeepPink}{\left(0\right)}\\\color{Purple}{\left(2\right)} - \color{Purple}{\left(1\right)} & \color{Magenta}{\left(-3\right)} - \color{Magenta}{\left(1\right)} & \color{OrangeRed}{\left(-5\right)} - \color{OrangeRed}{\left(5\right)}\\\color{Red}{\left(1\right)} - \color{Red}{\left(1\right)} & \color{Blue}{\left(7\right)} - \color{Blue}{\left(0\right)} & \color{Brown}{\left(1\right)} - \color{Brown}{\left(-1\right)}\end{array}\right] = \left[\begin{array}{ccc}-1 & 5 & -3\\1 & -4 & -10\\0 & 7 & 2\end{array}\right]$

## 答え

$\left[\begin{array}{ccc}1 & 2 & -3\\2 & -3 & -5\\1 & 7 & 1\end{array}\right] - \left[\begin{array}{ccc}2 & -3 & 0\\1 & 1 & 5\\1 & 0 & -1\end{array}\right] = \left[\begin{array}{ccc}-1 & 5 & -3\\1 & -4 & -10\\0 & 7 & 2\end{array}\right]$A