4
votes
1answer
471 views

Using simple, MathJax-compatible TeX to put enclose a matrix in braces

I was trying to explain the identity matrix over at Math StackExchange and I wound up using the following. $${\bf I_n} = \underbrace{ \left.\left( ...
7
votes
2answers
3k views

How to typeset a matrix with MathJax?

I need to typeset a matrix with square brackets as delimiters for math.se (I believe they use MathJaX). How would I do that?
18
votes
3answers
2k views

How can I visualize Matrix operations?

I would like to visualize some matrix operations like that: How can I do that (preferably something that also works for mathjax)?