Hi, I was looking at trying to implement something similar to amsmath's intertext command. I can get the basic functionality working as follows. \def\startintertext#1\stopintertext{% \noalign{#1}\NR} \startformula \startalign \NC A_1 \NC= \left| \int_0^1 (x^2 - 3x)\, dx \right| + \left| \int_1^2 (x^2 -5x + 6)\, dx \right| \NR \startintertext Take limis of both integrals %\input tufte \stopintertext \NC \NC = \left| \frac{x^3}{3} - \frac{3}{2} x^2 \right|_0^1 + \left| \frac {x ^3}{3} - 7 \frac{5}{2} x^2 + 6x \right|_1^2 \NR \NC \NC = \left| - \frac{7}{6} \right| + \left|\frac{14}{3} - \frac{23}{6}\right| = \frac{7}{6} + \frac{5}{6} = 2 \NR \stopalign \stopformula This seems to be working fine. However, \intertext defined in amsmath.sty seems to be doing a lot more (I just can't figure out what it is doing?) Can someone suggest how to make the above command more robust on the lines of \intertext? %----- from amsmath.sty ------------- \def\intertext@{% \def\intertext##1{% \ifvmode\else\\\@empty\fi \noalign{% \penalty\postdisplaypenalty\vskip\belowdisplayskip \vbox{\normalbaselines \ifdim\linewidth=\columnwidth \else \parshape\@ne \@totalleftmargin \linewidth \fi \noindent##1\par}% \penalty\predisplaypenalty\vskip\abovedisplayskip% }% }} Thanks, Aditya -- Aditya Mahajan, EECS Systems, University of Michigan http://www.eecs.umich.edu/~adityam || Ph: 7342624008
Hi, Aditya Mahajan wrote:
This seems to be working fine. However, \intertext defined in amsmath.sty seems to be doing a lot more (I just can't figure out what it is doing?) Can someone suggest how to make the above command more robust on the lines of \intertext?
It inserts a post/pre-display skip&penalty pair around the intertext, then creates a \vbox for use a paragraph. The result is (almost) as if it the text was part of the 'normal' text flow between two displays. I cannot tell you if this would work exactly the same as expected in ConTeXt (needs further testing), but a context-like solution would look like this: \def\startintertext#1\stopintertext{% \noalign{\dointertext{#1}}\NR} \unexpanded\def\dointertext#1% {\penalty\postdisplaypenalty \afterdisplayspace % the matching \before... is not needed \vbox{\forgetall \noindent #1\par}% \penalty\postdisplaypenalty } Cheers, taco
Taco Hoekwater wrote:
Hi,
Aditya Mahajan wrote:
This seems to be working fine. However, \intertext defined in amsmath.sty seems to be doing a lot more (I just can't figure out what it is doing?) Can someone suggest how to make the above command more robust on the lines of \intertext?
It inserts a post/pre-display skip&penalty pair around the intertext, then creates a \vbox for use a paragraph. The result is (almost) as if it the text was part of the 'normal' text flow between two displays.
I cannot tell you if this would work exactly the same as expected in ConTeXt (needs further testing), but a context-like solution would look like this:
\def\startintertext#1\stopintertext{% \noalign{\dointertext{#1}}\NR}
\unexpanded\def\dointertext#1% {\penalty\postdisplaypenalty \afterdisplayspace % the matching \before... is not needed \vbox{\forgetall \noindent #1\par}% \penalty\postdisplaypenalty }
can someone wrap up the accumulated patches/suggestions for the math environments? Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------
<--- On Mar 27, Taco Hoekwater wrote --->
Hans Hagen wrote:
can someone wrap up the accumulated patches/suggestions for the math environments?
I hope someone else can do that (Aditya?) I lost track myself
I have a list of all the patches that were sent to the ML but have not been included in the core yet. I will make a list on the wiki. Aditya -- Aditya Mahajan, EECS Systems, University of Michigan http://www.eecs.umich.edu/~adityam || Ph: 7342624008
Taco Hoekwater wrote:
Hi,
Aditya Mahajan wrote:
This seems to be working fine. However, \intertext defined in amsmath.sty seems to be doing a lot more (I just can't figure out what it is doing?) Can someone suggest how to make the above command more robust on the lines of \intertext?
It inserts a post/pre-display skip&penalty pair around the intertext, then creates a \vbox for use a paragraph. The result is (almost) as if it the text was part of the 'normal' text flow between two displays.
I cannot tell you if this would work exactly the same as expected in ConTeXt (needs further testing), but a context-like solution would look like this:
\def\startintertext#1\stopintertext{% \noalign{\dointertext{#1}}\NR}
\unexpanded\def\dointertext#1% {\penalty\postdisplaypenalty \afterdisplayspace % the matching \before... is not needed \vbox{\forgetall \noindent #1\par}% \penalty\postdisplaypenalty }
added (preliminary) but i need an example of usage for the core-mat file/docu -) Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------
<--- On Mar 27, Taco Hoekwater wrote --->
Hi,
Aditya Mahajan wrote:
This seems to be working fine. However, \intertext defined in amsmath.sty seems to be doing a lot more (I just can't figure out what it is doing?) Can someone suggest how to make the above command more robust on the lines of \intertext?
It inserts a post/pre-display skip&penalty pair around the intertext, then creates a \vbox for use a paragraph. The result is (almost) as if it the text was part of the 'normal' text flow between two displays.
I cannot tell you if this would work exactly the same as expected in ConTeXt (needs further testing), but a context-like solution would look like this:
\def\startintertext#1\stopintertext{% \noalign{\dointertext{#1}}\NR}
\unexpanded\def\dointertext#1% {\penalty\postdisplaypenalty \afterdisplayspace % the matching \before... is not needed \vbox{\forgetall \noindent #1\par}% \penalty\postdisplaypenalty }
This does not look good. Consider, \def\startintertext#1\stopintertext{% \noalign{\dointertext{#1}}\NR} \unexpanded\def\dointertext#1% {\penalty\postdisplaypenalty \afterdisplayspace % the matching \before... is not needed \vbox{\forgetall \noindent #1\par}% \penalty\postdisplaypenalty } \startformula \startalign \NC A_1 \NC= \left| \int_0^1 (x^2 - 3x)\, dx \right| + \left| \int_1^2 (x^2 -5x + 6)\, dx \right| \NR \startintertext Take limits of both integrals \stopintertext \NC \NC = \left| \frac{x^3}{3} - \frac{3}{2} x^2 \right|_0^1 + \left| \frac {x ^3}{3} - 7 \frac{5}{2} x^2 + 6x \right|_1^2 \NR \NC \NC = \left| - \frac{7}{6} \right| + \left|\frac{14}{3} - \frac{23}{6}\right| = \frac{7}{6} + \frac{5}{6} = 2 \NR \stopalign \stopformula There is too much space after the intertext and the next line. Can you provide some magic to reduce this space. Thanks, Aditya -- Aditya Mahajan, EECS Systems, University of Michigan http://www.eecs.umich.edu/~adityam || Ph: 7342624008
Aditya Mahajan wrote:
This does not look good. Consider,
There is too much space after the intertext and the next line. Can you provide some magic to reduce this space.
Ok, got it. The \NR has to go away, and the \beforedisplayspace reinserted, like so: \def\startintertext#1\stopintertext {\noalign{\dointertext{#1}}} \unexpanded\def\dointertext#1% {\penalty\postdisplaypenalty \afterdisplayspace \vbox{\forgetall \noindent #1\par}% \penalty\predisplaypenalty \beforedisplayspace } Looks much better (over here). Taco
<--- On Mar 29, Taco Hoekwater wrote --->
Aditya Mahajan wrote:
This does not look good. Consider,
There is too much space after the intertext and the next line. Can you provide some magic to reduce this space.
Ok, got it. The \NR has to go away, and the \beforedisplayspace reinserted, like so:
\def\startintertext#1\stopintertext {\noalign{\dointertext{#1}}}
\unexpanded\def\dointertext#1% {\penalty\postdisplaypenalty \afterdisplayspace \vbox{\forgetall \noindent #1\par}% \penalty\predisplaypenalty \beforedisplayspace }
Looks much better (over here).
Thanks a lot. This indeed looks pretty good. Aditya -- Aditya Mahajan, EECS Systems, University of Michigan http://www.eecs.umich.edu/~adityam || Ph: 7342624008
participants (3)
-
Aditya Mahajan -
Hans Hagen -
Taco Hoekwater