## Overview

With my studies in category theory trundling along, I thought I’d take moment to share some general resources for typesetting commutative diagrams in . I’ll outline below some of the better resources and recommendations I’ve found, most by much more dedicated and serious users than I. Following that I’ll list a few resources, articles, and writings on some of the more common packages that I’ve seen mentioned.

Naturally, just reading through some of the 20+ page user guides to some of these packages can be quite daunting, much less wading through the sheer number that exist. Hopefully this one-stop-shop meta-overview will help others save some time trying to figure out what they’re looking for.

### Feruglio Summary

Gabriel Valiente Feruglio has a nice overview article naming all the primary packages with some compare/contrast information. One will notice it was from 1994, however, and misses a few of the more modern packages including TikZ. His list includes: AMS; Barr (diagxy); Borceux; Gurari; Reynolds; Rose (XY-pic); Smith (Arrow); Spivak; Svensson (kuvio); Taylor (diagrams); and Van Zandt (PSTricks). He lists them alphabetically and gives brief overviews of some of the functionality of each.

Feruglio, Gabriel Valiente. *Typesetting Commutative Diagrams.* TUGboat, Volume 15 (1994), No. 4

### Milne Summary

J.S. Milne has a fantastic one-page quick overview description of several available packages with some very good practical advise to users depending on the level of their needs. He also provides a nice list of eight of the most commonly used packages including: array (LaTeX); amscd (AMS); DCpic (Quaresma); diagrams (Taylor); kuvio (Svensson); tikz (Tantau); xymatrix (Rose); and diagxy (Barr). It’s far less formal than Feruglio, but is also much more modern. I also found it a bit more helpful for trying to narrow down one or more packages with which to play around.

Milne, J.S. *Guide to Commutative Diagram Packages*.

### Spivak Pseudo-recommendations

David Spivak, the author of *Category Theory for the Sciences*, seems to prefer XY-pic, diagXY, and TikZ based on his website from which he links to guides to each of these.

## Resources for some of the “Bigger” Packages

Based on the recommendations given in several of the resources above, I’ve narrowed the field a bit to some of the better sounding packages. I’ve provided links to the packages with some of the literature supporting them.

### Diagxy: Michael Barr

- CTAN Package
- Brief four page introduction
- Barr, Michael.
*A new diagram package*. (Version 2011-06-18)

### XY-pic: Kristoffer Rose & Ross Moore

- CTAN Package
- XY-pic User Guide
- Blaga, Paul A.
*Commutative Diagrams with XY-pic I. Kernel Functions and Arrows*. The PracTEX Journal, Draft of November 16, 2006.

### Diagrams: Paul Taylor

### TikZ-CD: Florêncio Neves

- CTAN Package
- TikZ-CD Package Documentation:
*{tikzcd} Commutative diagrams with TikZ*. Version 0.9e; October 30, 2014. - Lenders, Felix.
*Commutative Diagrams using TikZ*. April 12, 2012.