8
votes
2answers
828 views

Matrix with arrows and labels

I would like your advice on writing a matrix with latex. In order to explain the meaning of the rows and columns, the matrix should be surrounded by two arrows, one on the left side pointing downward ...
16
votes
3answers
1k 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)?