gistfile1.txt

inverse

$$\begin{pmatrix}
1.88 & 0.67 & -0.16 \newline
0.91 & 1.9 & -0.59 \newline
1.79 & 1.83 & 0.52
\end{pmatrix}$$

$$\begin{pmatrix}
0.6584 & -0.2042 & -0.0291 \newline
-0.487 & 0.4025 & 0.3068 \newline
-0.5527 & -0.7136 & 0.9433
\end{pmatrix}$$

$$\begin{pmatrix}
0.9762 & 0.064 & -0.6899 \newline
0.064 & 0.713 & -0.5437 \newline
-0.6899 & -0.5437 & 0.9848
\end{pmatrix}$$

$$\begin{pmatrix}
0.6584 & -0.487 & -0.5527 \newline
-0.2042 & 0.4025 & -0.7136 \newline
-0.0291 & 0.3068 & 0.9433
\end{pmatrix}$$

$$\begin{pmatrix}
0.4761 & -0.4117 & -0.2456 \newline
-0.4117 & 0.4933 & 0.2714 \newline
-0.2456 & 0.2714 & 1.7046
\end{pmatrix}$$


matrix multiplication

$$\begin{pmatrix}
0 & 1 & 0 \newline
1 & 2 & 0 \newline
1 & 0 & 1
\end{pmatrix}$$

$$\begin{pmatrix}
1.1 & 2.1 & 1.9 & 0 \newline
-1.0 & 2 & 3.5 & 1.1 \newline
1.2 & 0 & 0 & 1.2
\end{pmatrix}$$

$$\begin{pmatrix}
0 & 0 & -3 & 1 & 0 \newline
1 & 2 & 0 & 1 & 0 \newline
2 & 1 & 0 & 8 & 0 \newline
-2 & 6 & 0 & 3 & 0
\end{pmatrix}$$

$$\begin{pmatrix}
2 & 0 & 1 & 0 & 2 \newline
1 & 2 & 4 & 0 & 1 \newline
9 & 7 & 0 & 1  & 1 \newline
1 & 1 & 0 & 0 & 1 \newline
1 & 5 & 2 & 1 & 0
\end{pmatrix}$$

$$\begin{pmatrix}
2 & 7 \newline
1 & -7 
\end{pmatrix}$$