0
votes
0answers
28 views

How to format elementary row operations? [duplicate]

How do you write the elementary row operations in LaTeX? How do you show the use of the operations? Please include an example of interchanging rows, multiplying rows by a constant, and adding ...
6
votes
3answers
332 views

Countability of the rationals: a pictorial diagram

I am trying to reproduce the diagram below: I'm wondering what I should use to generate this. I can make the matrix, that's simple, but getting the arrows right is what's difficult... It would be ...
8
votes
2answers
1k 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 ...
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)?