I am using an iPad app TeX Writer and would like to draw a commutative diagram. I can use
amscd in the app but it is not sufficient for the diagrams I want to draw.
To include new package, I need to prepare a folder
texmf-local in which I create a folder
TeXinput and Zip it.
TeXinput is a flat directory, no sub directories allowed. It holds everything except for font files. (Full details here)
I tried to add
xy package but it did not work for me. I'm not sure if I prepared right.
Could you tell me how to prepare the flat directory file so that I can add some diagram packages? Like, which files I should include in the folder
It is ok if the package is not
xy but any other package is acceptable if I can draw commutative diagrams with diagonal lines etc.