\xycompiled{mwd-slides-09}{2002/12/9:879 [mwd-slides:392]}{Xy-pic 3.7}% {\xymatrixnocompile @-1pc{A&B\\C&D}}\relax \xy@{\xymatrix }{\enter@ {\def \noexpand \xy@minX@@ {\xy@minX@@ }\def \noexpand \xy@maxX@@ {\xy@maxX@@ }\def \noexpand \xy@minY@@ {\xy@minY@@ }\def \noexpand \xy@maxY@@ {\xy@maxY@@ }\edef \noexpand \xymatrixprefix@@ {\codeof \xymatrixprefix@@ }}}% \xy@{}{\save@ \edef \matrixorigin@ {\X@c =\the \X@c \Y@c =\the \Y@c }\edef \xy@minX@@ {\the \X@c }\edef \xy@maxX@@ {\the \X@c }\edef \xy@minY@@ {\the \Y@c }\edef \xy@maxY@@ {\the \Y@c }}% \xy@{""}{\edef \xymatrixprefix@@ {}}% \xy@{@}{}% \xy@{12.0pt}{}% \xy@{}{\edef \xymatrixrowsep@ {12.0pt}\checkZeroEdge@ }% \xy@{}{\edef \xymatrixcolsep@ {12.0pt}\checkZeroEdge@ }% \xy@{}{\matrixorigin@ }% \xy@{}{\L@c =6.37495pt\R@c =6.37497pt\D@c =6.47221pt\U@c =6.47221pt\Edge@c ={\rectangleEdge }\idfromc@ {1,1}}% \xy@{}{\dimen@ =\X@c \advance \dimen@ -\L@c \ifdim \dimen@ <\xy@minX@@ \edef \xy@minX@@ {\the \dimen@ }\fi \dimen@ =\X@c \advance \dimen@ +\R@c \ifdim \dimen@ >\xy@maxX@@ \edef \xy@maxX@@ {\the \dimen@ }\fi \dimen@ =\Y@c \advance \dimen@ -\D@c \ifdim \dimen@ <\xy@minY@@ \edef \xy@minY@@ {\the \dimen@ }\fi \dimen@ =\Y@c \advance \dimen@ +\U@c \ifdim \dimen@ >\xy@maxY@@ \edef \xy@maxY@@ {\the \dimen@ }\fi }% \xy@{}{\dimen@ =6.47221pt\R@ =\xy@cotabs@@ \dimen@ \dimen@ =6.57909pt\relax \ifdim \R@ >\dimen@ \R@ =\dimen@ \fi \dimen@ =6.47221pt\B@ =\xy@cotabs@@ \dimen@ \dimen@ =7.09991pt\relax \ifdim \B@ >\dimen@ \B@ =\dimen@ \fi \advance \R@ \B@ }% \xy@{}{\dimen@ =\xymatrixcolsep@ \dimen@ =\xy@cosabs@@ \dimen@ \advance \R@ \dimen@ \advance \X@c \xy@cossign@@ \R@ }% \xy@{}{\dimen@ =6.57909pt\R@ =\xy@tanabs@@ \dimen@ \dimen@ =6.47221pt\relax \ifdim \R@ >\dimen@ \R@ =\dimen@ \fi \dimen@ =7.09991pt\B@ =\xy@tanabs@@ \dimen@ \dimen@ =6.47221pt\relax \ifdim \B@ >\dimen@ \B@ =\dimen@ \fi \advance \R@ \B@ }% \xy@{}{\dimen@ =\xymatrixcolsep@ \dimen@ =\xy@sinabs@@ \dimen@ \advance \R@ \dimen@ \advance \Y@c \xy@sinsign@@ \R@ }% \xy@{}{\L@c =6.84515pt\R@c =6.84517pt\D@c =6.47221pt\U@c =6.47221pt\Edge@c ={\rectangleEdge }\idfromc@ {1,2}}% \xy@{}{\dimen@ =\X@c \advance \dimen@ -\L@c \ifdim \dimen@ <\xy@minX@@ \edef \xy@minX@@ {\the \dimen@ }\fi \dimen@ =\X@c \advance \dimen@ +\R@c \ifdim \dimen@ >\xy@maxX@@ \edef \xy@maxX@@ {\the \dimen@ }\fi \dimen@ =\Y@c \advance \dimen@ -\D@c \ifdim \dimen@ <\xy@minY@@ \edef \xy@minY@@ {\the \dimen@ }\fi \dimen@ =\Y@c \advance \dimen@ +\U@c \ifdim \dimen@ >\xy@maxY@@ \edef \xy@maxY@@ {\the \dimen@ }\fi }% \xy@{}{\cfromid@ {1,1}}% \xy@{}{\dimen@ =6.47221pt\R@ =\xy@tanabs@@ \dimen@ \dimen@ =7.09991pt\relax \ifdim \R@ >\dimen@ \R@ =\dimen@ \fi \dimen@ =6.47221pt\B@ =\xy@tanabs@@ \dimen@ \dimen@ =7.09991pt\relax \ifdim \B@ >\dimen@ \B@ =\dimen@ \fi \advance \R@ \B@ }% \xy@{}{\dimen@ =\xymatrixrowsep@ \dimen@ =\xy@sinabs@@ \dimen@ \advance \R@ \dimen@ \advance \X@c \xy@sinsign@@ \R@ }% \xy@{}{\dimen@ =7.09991pt\R@ =\xy@cotabs@@ \dimen@ \dimen@ =6.47221pt\relax \ifdim \R@ >\dimen@ \R@ =\dimen@ \fi \dimen@ =7.09991pt\B@ =\xy@cotabs@@ \dimen@ \dimen@ =6.47221pt\relax \ifdim \B@ >\dimen@ \B@ =\dimen@ \fi \advance \R@ \B@ }% \xy@{}{\dimen@ =\xymatrixrowsep@ \dimen@ =\xy@cosabs@@ \dimen@ \advance \R@ \dimen@ \advance \Y@c -\xy@cossign@@ \R@ }% \xy@{}{\L@c =6.57909pt\R@c =6.57909pt\D@c =6.47221pt\U@c =6.47221pt\Edge@c ={\rectangleEdge }\idfromc@ {2,1}}% \xy@{}{\dimen@ =\X@c \advance \dimen@ -\L@c \ifdim \dimen@ <\xy@minX@@ \edef \xy@minX@@ {\the \dimen@ }\fi \dimen@ =\X@c \advance \dimen@ +\R@c \ifdim \dimen@ >\xy@maxX@@ \edef \xy@maxX@@ {\the \dimen@ }\fi \dimen@ =\Y@c \advance \dimen@ -\D@c \ifdim \dimen@ <\xy@minY@@ \edef \xy@minY@@ {\the \dimen@ }\fi \dimen@ =\Y@c \advance \dimen@ +\U@c \ifdim \dimen@ >\xy@maxY@@ \edef \xy@maxY@@ {\the \dimen@ }\fi }% \xy@{}{\dimen@ =6.47221pt\R@ =\xy@cotabs@@ \dimen@ \dimen@ =6.57909pt\relax \ifdim \R@ >\dimen@ \R@ =\dimen@ \fi \dimen@ =6.47221pt\B@ =\xy@cotabs@@ \dimen@ \dimen@ =7.09991pt\relax \ifdim \B@ >\dimen@ \B@ =\dimen@ \fi \advance \R@ \B@ }% \xy@{}{\dimen@ =\xymatrixcolsep@ \dimen@ =\xy@cosabs@@ \dimen@ \advance \R@ \dimen@ \advance \X@c \xy@cossign@@ \R@ }% \xy@{}{\dimen@ =6.57909pt\R@ =\xy@tanabs@@ \dimen@ \dimen@ =6.47221pt\relax \ifdim \R@ >\dimen@ \R@ =\dimen@ \fi \dimen@ =7.09991pt\B@ =\xy@tanabs@@ \dimen@ \dimen@ =6.47221pt\relax \ifdim \B@ >\dimen@ \B@ =\dimen@ \fi \advance \R@ \B@ }% \xy@{}{\dimen@ =\xymatrixcolsep@ \dimen@ =\xy@sinabs@@ \dimen@ \advance \R@ \dimen@ \advance \Y@c \xy@sinsign@@ \R@ }% \xy@{}{\L@c =7.09991pt\R@c =7.09993pt\D@c =6.47221pt\U@c =6.47221pt\Edge@c ={\rectangleEdge }\idfromc@ {2,2}}% \xy@{}{\dimen@ =\X@c \advance \dimen@ -\L@c \ifdim \dimen@ <\xy@minX@@ \edef \xy@minX@@ {\the \dimen@ }\fi \dimen@ =\X@c \advance \dimen@ +\R@c \ifdim \dimen@ >\xy@maxX@@ \edef \xy@maxX@@ {\the \dimen@ }\fi \dimen@ =\Y@c \advance \dimen@ -\D@c \ifdim \dimen@ <\xy@minY@@ \edef \xy@minY@@ {\the \dimen@ }\fi \dimen@ =\Y@c \advance \dimen@ +\U@c \ifdim \dimen@ >\xy@maxY@@ \edef \xy@maxY@@ {\the \dimen@ }\fi }% \xy@{}{\ifx \xymatrixsavedCOORD@ \relax \enter@ {\noexpand \let \noexpand \COORD@ \noexpand \xymatrixsavedCOORD@ }\let \xymatrixsavedCOORD@ =\COORD@ \let \COORD@ =\xymatrixCOORD@ \else \enter@ {}\fi }% \xy@{ENTRY "1,1"}{\Row =1 \Col =1\relax \cfromid@ {1,1}\pfromc@ }% \xy@@ix@{{\entrybox }{A}}\relax \xy@{}{\expandafter \dropentry@ \the \toks 9}% \xy@{ENTRY "1,2"}{\Row =1 \Col =2\relax \cfromid@ {1,2}\pfromc@ }% \xy@@ix@{{\entrybox }{B}}\relax \xy@{}{\expandafter \dropentry@ \the \toks 9}% \xy@{ENTRY "2,1"}{\Row =2 \Col =1\relax \cfromid@ {2,1}\pfromc@ }% \xy@@ix@{{\entrybox }{C}}\relax \xy@{}{\expandafter \dropentry@ \the \toks 9}% \xy@{ENTRY "2,2"}{\Row =2 \Col =2\relax \cfromid@ {2,2}\pfromc@ }% \xy@@ix@{{\entrybox }{D}}\relax \xy@{}{\expandafter \dropentry@ \the \toks 9}% \xy@{}{\leave@ }% \xy@{}{}% \xy@{\restore }{\leave@ }% \xy@{}{\edef \nextii@ {{\xy@minX@@ }{\xy@maxX@@ }{\xy@minY@@ }{\xy@maxY@@ }}\expandafter \xymatrix@insert@ \nextii@ }% \xy@{}{\leave@ }% \xyendcompiled