scavo@cie.uoregon.edu (Tom Scavo) (06/11/91)
I sometimes use Word's \Array command as a LaTeX-like "eqnarray"
environment. For example,
\A\al\hs5\vs0\co3(lhs1,=,rhs1,lhs2,=,rhs2,lhs3,=,rhs3)
gives the structure
lhs1 = rhs1
lhs2 = rhs2 .
lhs3 = rhs3
I had hoped to use a similar Word formula to do a commutative diagram,
something like
f
A ----> A
^ ^
h | | h
| |
B ----> B
g
but with the vertical arrows pointing in the opposite direction. Well,
to make a long story short, I'm not having much luck. I can get a
partial result without the top and bottom function names, but as soon as
I try to take it any further, the whole thing falls apart (literally).
I was hoping someone could tell me where I'm going wrong. Here's what
the code looks like so far (without the spaces or carriage returns):
\A\ac\hs0\vs0\co8( ,A,-,-,-,->,A, ,
,^, , , , ,^, ,
h ,|, , , , ,|, h,
,|, , , , ,|, ,
,B,-,-,-,->,B, )
I've checked and double-checked the number of commas, which is where I
originally thought the problem might be. (Curiously, the trailing comma
needs to be removed before the formula will display. Word's real fussy
about it.) What I'd like to do is add two more rows, one at the top and
the bottom, but I just can't get it to work. Seems like the formula
processor chokes on anything more than five rows. Does anybody have any
idea how I might finish this? (Please don't say "switch to OzTeX or
Textures" because that isn't a viable option at this point!)
Thanks in advance,
Tom Scavo
scavo@cie.uoregon.eduscavo@cie.uoregon.edu (Tom Scavo) (06/13/91)
Thanks to everyone who responded to the problem with Word's Array formula command. An overwhelming majority suggested I dump the formula approach and use a drawing program to construct the commutative diagram. In the end, it worked out, however. The key idea came from idsardi@athena.mit.edu (thanks Bill!) who used nested Array structures to overcome Word's apparent inability to handle more than 39 arguments in a single Array command (a documented bug?). Here's the end result (I hope this single, long line comes thru unscathed): \A(\A\ac\hs0\vs0\co8(,,,,f,,,),\A\ac\hs0\vs0\co8(,A, <190>,\D\ba1()<190>,\D\ba2()<190>,\D\ba2()<174> ,A,),\A\ac\hs0\vs0\co8(,\S\di-2\do2(<189>),,,,,\S\di-2\do2(<189>),,h ,\S\di-3\do3(<189>),,,,,\S\di-3\do3(<189>), h,,<175>,,,,,<175>,,,B, <190>,\D\ba1()<190>,\D\ba2()<190>,\D\ba2()<174> ,B),\A\ac\hs0\vs0\co8(,,,,g,,,)) Cut and paste this beast, and make the following changes: 1) replace all backslashes with the formula character (use ^\ in Word's Change utility); 2) replace the forms <nnn> with the corresponding ascii char- acter taken from the Symbol font (use command-option-Q); 3) italicize the function and set names; 4) edit out the \hs0\vs0 options if you wish (I was hoping to use negative spacing options, rather than \D, to line up the arrows and bars, but this doesn't work). I stored mine in a Mathematics Glossary formatted with the Normal style (except for the Symbol characters) so that the resulting structure takes on the font of the surrounding text. I dare say it looks pretty good! Thanks again for all the help, -- Tom Scavo scavo@cie.uoregon.edu