# Tagged Questions

{xy-pic} is a package for typesetting graphs and {commutative-diagrams} using the principle of "logical composition of visual components."

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### arrow crossings of curves in xy-pic

I want a diagram like What I can do is \[ \xy (-10,0)*+{ml}="ml"; (10,0)*+{mr}="mr"; (-5,13)*+{t}="t"; (10,-10)*+{b}="b"; {\ar@{-}@`{(10,0),(0,10),(-10,0)}|(0.11){\hole}|(0.501)\hole|(0.96){\dir{...
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### Arrow lines crooked when using xymatrix frame around group of entries

The following does not yield squared arrow lines. The lines connecting the two lower blocks are crooked. Does anyone have any idea how to fix that? Thanks, Dave \usepackage{tikz} \usepackage[all,...
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### Composition in a multicategory

I am trying to figure out how to draw composition in a multicategory using same depiction used in Leinster's book "Higher Operads, Higher Categories". Here is what I am trying to draw: I did ...
41 views

### How to make longer arrows from object to itself at xy-pic

I trying to control on the length of arrow from object to itself at xymatrix (xy-pic): for example - This is what I get when I'm typing *+++[o][F.]{a}\ar@(d,r) And this is what I get when I ...
77 views

### Xy-pic: Draw a partial circle segment with the command \cir

I can't figure out if is it possible or not to draw a partial circle segment between to arbitrary direction, with the command \cir? The manual says: *\cir<radius>{<diag> <orient> &...
116 views

### Can I use xymatrix to make a spectral sequence ? meaning how to make the boxes?

Is it possible to use the xymatrix command to make a spectral sequence ? Since xymatrix has all the arrows, what I am really asking is are there commands that will enclose the entries in a lattice of ...
35 views

### tikz-cd versus xy

In certain circumstances, I plan to request for users to make use of tikz-cd package instead of xy package (because the latter performs category code changes of @ \AtBeginDocument). But, because I ...
39 views

### semi-dashed arrow

Is it possible to draw a symbol looking like \DashedRightarrow in http://i.imgur.com/N8mEhzz.png ? I would need such a symbol in a \xymatrix environment. If it is not possible without modifying ...
48 views

### Xymatrix crossed arrow

I would like to reproduce this figure using xymatrix package, i have encounter difficulties in scaling and in drawing an X cross in the down left arrow. Thanks