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

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4
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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"; ...
3
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0answers
56 views

How to transpose or mirror xymatrix?

I know that it is possible to rotate \xymatrix (using e.g. \xymatrix@d) but how to transpose or mirror it?