xiaojf said this at Sat, 14 May 2005 21:36:45 +0800:
Hi, I can code the cycle in ConTeXt,but it's too ugly and I will try to improve it. here is my code:
\starttext \placeformula \startformula \matrix{A+B&{\Delta G_1\atop\rightleftharpoons}&AB\cr \Delta G_3\!\!\upharpoonleft\!\downharpoonright&& \upharpoonleft\!\downharpoonright\!\!\Delta G_4\cr A'+B&{\rightleftharpoons\atop\Delta G_2}&A'B\cr} \stopformula \stoptext
Hmm. It seems like a reasonable starting point, but I'll admit this is beyond my abilities to fix over this weekend. I hope some other TeXnician might come along and offer some advice. Best of luck, adam
There is a similar example in "The TeXbook"(example 18.46). You can try the follow code:
$$\def\normalbaselines{\baselineskip20pt \lineskip3pt \lineskiplimit3pt } \def\mapright#1{\smash{ \mathop{\longrightarrow}\limits^{#1}}} \def\mapdown#1{\Big\downarrow \rlap{$\vcenter{\hbox{$\scriptstyle#1$}}$}} \matrix{&&&&&&0\cr &&&&&&\mapdown{}\cr 0&\mapright{}&{\cal O}_C&\mapright\iota& \cal E&\mapright\rho&\cal L&\mapright{}&0\cr &&\Big\Vert&&\mapdown\phi&&\mapdown\psi\cr 0&\mapright{}&{\cal O}_C&\mapright{}& \pi_*{\cal O}_D&\mapright\delta& R^1f_*{\cal O}_V(-D)&\mapright{}&0\cr &&&&&&\mapdown{\theta_i\otimes\gamma^{-1}}\cr &&&&&&\hidewidth R^1f_*\bigl({\cal O} _V(-iM)\bigr)\otimes\gamma^{-1}\hidewidth\cr &&&&&&\mapdown{}\cr &&&&&&0\cr}$$
Since i'm just a newbie of TeX, I don't really understand the first a few lines of the solution. I still need some learning and practice :)
ah, don't we all... -- =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Adam T. Lindsay, Computing Dept. atl@comp.lancs.ac.uk Lancaster University, InfoLab21 +44(0)1524/510.514 Lancaster, LA1 4WA, UK Fax:+44(0)1524/510.492 -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-