Matrix

LinearAlgebra

Tell It by Myself…

From the simple equation from…

$$\begin{array}{rl}2x-y& =0\\ -x+2y& =3\end{array}$$

Can be represent by…

$$\left[\begin{array}{c}2-1\\ -12\end{array}\right]\left[\begin{array}{c}x\\ y\end{array}\right]=\left[\begin{array}{c}0\\ 3\end{array}\right]$$

And we use $A$ to represent the matrix of the coefficients. And $x$ to represent the unknowns. The right hand side we called as $b$.

Then we come to $$ Ax=b

--- # Reference