Can anyone help me in giving commands for commutative diagrams in LaTeX ? It doesn't seem to appear properly in the LaTeX guides that I have. A command for a simple triangular diagram with arrows associated to maps would be good enough, or maybe some appropriate reference.
For simple and complex diagrams, I'd recommend
An arrow takes as argument the "steps" where it has to go:
A similar syntax is available with Xy-pic.
Note how the labels are positioned:
As you see, the results are pretty much alike. While I used to use Xy-pic, I'm now more convinced that