I How to Write a Matrix on a Webpage?

[cookiemnstr510510]

Hello, sorry if this is in the incorrect thread but I am wondering how I write a matrix on here?
Much help appreciated and more problems to come ;)
Thanks!

 

[fresh_42]

You find a good explanation here:
https://www.physicsforums.com/help/latexhelp/

 

[cookiemnstr510510]

You find a good explanation here:
https://www.physicsforums.com/help/latexhelp/

Thank you! I appreciate it!

 

[cookiemnstr510510]

You find a good explanation here:
https://www.physicsforums.com/help/latexhelp/

okay, what am I doing wrong?
\being{vmatrix}
1 & -5 & 4 & 0 & 0 \\
0 & 1 & 0 & 1 & 0
\end{vmatrix}

 

[fresh_42]

okay, what am I doing wrong?
\being{vmatrix}
1 & -5 & 4 & 0 & 0 \\
0 & 1 & 0 & 1 & 0
\end{vmatrix}

You need to put it in either $matrix$ or in $$matrix$$ for a separated line.
Inline $\begin{vmatrix} 1 & -5 & 4 & 0 & 0 \\ 0 & 1 & 0 & 1 & 0 \end{vmatrix}$ text, which is ok for matrices, or on an extra line
$$
\begin{bmatrix}
1 & -5 & 4 & 0 & 0 \\
0 & 1 & 0 & 1 & 0
\end{bmatrix}
$$
and you wrote 'begin' wrong - looks a bit like Bejing.

 

[cookiemnstr510510]

\begin{vmatrix}
1 & -5 & 4 & 0 & 0 \\
0 & 1 & 0 & 1 & 0
\end{vmatrix}

Got it! Thank you @fresh_42