Math & Science ⇒ long formulas in xypic

[smurfette]

Hello,

I have xypic diagrams with pretty long formulas in them and I would like to write those formulas on several lines but I want them to be all in the same entry in my xymatrix. Is that possible?

Thanks in advance for your help.

Smurfette

[gmedina]

Hi,

I've never used the xypic package (I find its syntax rather "obscure") and perhaps I am misundertanding your question, but can't you just use the \\ command?

[Stefan Kottwitz]

Hi Smurfette,

welcome to the board!
You could use an array environment inside a xymatrix entry, or for instance amsmath macros like genfrac.

Stefan

[smurfette]

Hi,

I've never used the xypic package (I find its syntax rather "obscure") and perhaps I am misundertanding your question, but can't you just use the \\ command?

No that won't work, the \\ command is interpreted as starting a new line in the xymatrix.

[Stefan Kottwitz]

the \\ command is interpreted as starting a new line in the xymatrix.

that's why I suggested to use a new environment like an array in the cell.

Stefan

[smurfette]

the \\ command is interpreted as starting a new line in the xymatrix.

that's why I suggested to use a new environment like an array in the cell.

Stefan

I tried that too, but it doesn't seem to support the array environment in an xymatrix entry...

[gmedina]

...I tried that too, but it doesn't seem to support the array environment in an xymatrix entry...

As I said before, I haven't used this package; however, it seems to support array environments, as the following simple variation of an example of the documentation shows:

Code: Select all

\documentclass{article}
\usepackage{xypic}

\begin{document}

\xymatrix{
A \ar@<1ex>[dr]^a_{.} \\
& B \ar@<1ex>[ul]^{\begin{array}{c}f \\ g\end{array}} \ar@<1ex>[r]^c
& C \ar@<1ex>[l]^d_{.} }

\end{document}

[Stefan Kottwitz]

that's why I suggested to use a new environment like an array in the cell.

I tried that too, but it doesn't seem to support the array environment in an xymatrix entry...

I know it does. As long as you don't post your code we cannot correct it.

Stefan

[smurfette]

Oh I'm sorry for having bothered... I simply forgot to put { } around the entry... :S Thanks for your help!