Questions askedCategory: 2568How to Write a Matrix and System of Linear Equation in LaTex?
Yu Staff asked 1 year ago

As the title says,

I want to know how to write a matrix and system of linear equation in Latex?

Yu Staff answered 1 year ago

If you are looking for Latex codes for matrices, system of equations, etc, then please go to the page Latex and MathJax in WordPress.

To get $\begin{bmatrix} 1 & 2\\ 3& 4 \end{bmatrix}$, write


$\begin{bmatrix} 1 & 2\\ 3& 4 \end{bmatrix}$.


For an augmented matrix, try

 $\left[\begin{array}{rrr|r} 1 & 0 & 0 & 1 \\ 0 & 1 & 0 & 0 \\ 0 & 0 & 1 & 0 \\ \end{array} \right]$

You get
$\left[\begin{array}{rrr|r} 1 & 0 & 0 & 1 \\ 0 & 1 & 0 & 0 \\ 0 & 0 & 1 & 0 \\ \end{array} \right]$
By writing

 $\left[\begin{array}{rrr|rrr} 1 & 0 & 0 & 1 &1 & 1 \\ 0 & 1 & 0 & 0 & 1 & 1 \\ 0 & 0 & 1 & 0 & 0 & 1 \\ \end{array} \right]$

You get
$\left[\begin{array}{rrr|rrr} 1 & 0 & 0 & 1 &1 & 1 \\ 0 & 1 & 0 & 0 & 1 & 1 \\ 0 & 0 & 1 & 0 & 0 & 1 \\ \end{array} \right]$ Here is the Latex code for the system of equations.


$\left\{ \begin{array}{c} a_1x+b_1y+c_1z=d_1 \\ a_2x+b_2y+c_2z=d_2 \\ a_3x+b_3y+c_3z=d_3 \end{array} \right.$

The result is
$\left\{ \begin{array}{c} a_1x+b_1y+c_1z=d_1 \\ a_2x+b_2y+c_2z=d_2 \\ a_3x+b_3y+c_3z=d_3 \end{array} \right.$ More latex codes can be found at the page MathJax in WordPress, especially latex codes useful for MathJax blogs.