Quoting Hans Hagen :

Aditya Mahajan wrote:

...

Hi Hans and Taco,

I am attaching the math enhancements that I have been promising for about for some days^H^H^H^Hweeks now. Here are the changes.

1. Improved \llap, \rlap, \clap that work in both math and text mode (Taco's code)

2. A \cramped macro to go into cramped mode (based on Knuth's code) made even more cramped:

\def\docramped#1#2% {\begingroup % added HH, made even more cramped \setbox\scratchbox\hbox {\nulldelimiterspace\zeropoint $\m@th#1\radical\zerocount{#2}$}% \ht\scratchbox-\dimexpr \ifx#1\displaystyle \fontdimen8\textfont3 +.25\fontdimen5\textfont2 \else 1.25\fontdimen8 \ifx#1\textstyle \textfont \else\ifx#1\scriptstyle \scriptfont \else \scriptscriptfont \fi \fi \plusthree \fi -\ht\scratchbox \relax \box\scratchbox \endgroup}

Phew! Took some time to realize that \ht\scratchbox-\dimexp is same as \ht\scracthbox=-\dimexp. Rest of it is same as the earlier definition, just a bit more easy to understand.

...

3. \crampedllap \crampedrlap, \crampedclap for the equivalents to \llap etc which typesets its contents in cramped mode (well, I kinda figured that out on my own :)

4. An improved substack macro, with improved spacing. (Based on amsmath's substack macro). Taco, does it make sense to surround substack with a group, which will save some typing \sum_startsubstack whatever \stopsubstack or are there any side effects? In the code, I do not have the extra group.

5. Definitions for iint, iiint, iiiint (for those who can't count i's like me, you can use \repeatintegral{1}, \repeatintegral{2}, etc. Maybe, we should have the more readable \doubleintegral, \tripeintegral, \quadintegral also). This is based on amsmath code, and tries to use correct spacing for \iint\limits_{....}. BTW, does anyone wish that the limits with \int were configurable rather than defaulting to \nolimits? amsmath provides this feature, but I have personally never seen it being used. It is not too difficult to implement.

6. A definition for splitfrac, which is useful for multi-line fractions. Based on Michael Downes' code.

..... I also had something for \intertext, but realized that \intertext does not honor indentations. I will look into that first, before posting the code.

Now, I need to do collect everthing for theorems. Hopefully, core-des has not changed since I started working on it...

i wonder is this genfrac is ok ... dangling \zeropoint etc

can you check m-newmath?

Sorry, here are the correct definitions: \def\splitfrac#1#2% {\genfrac{}{}\zeropoint\textstyle% {\textstyle#1\quad\hfill}% {\textstyle\hfill\quad\mathstrut#2}} \def\splitdfrac#1#2% {\genfrac{}{}\zeropoint\displaystyle% {#1\quad\hfill} {\hfill\quad\mathstrut #2}} In LaTeX if the fourth argument of genfrac can be 0-3 as an abbreviation for \displaystyle, \textstyle, etc. Since ConTeXt does not follow this, it resulted in 0 and 1 in the output.

maybe the few useful things in there can go to core-mat anyway

Or probably split core-mat, it is getting a bit too long. How about disp-mat for all display math related stuff, and core-mat for the remaining macros in core-mat and m-newmat Aditya