Hi Hans and Taco,
I want a command for writing prescript, something that works like
${}^1 f_t$ but with correct spacing. As far as I know, such a command
does not exist in ConTeXt. A bit of a search shows that the "best"
definition in LaTeX is by Michael J. Downes
http://groups.google.com/group/comp.text.tex/msg/49206d0dffe71236?dmode=source&hl=en
This is very similar to \lohi[left] but defined for math mode and
takes care of math spacing.
\DeclareRobustCommand{\prescript}[3]{%
[EMAIL PROTECTED]@\scriptstyle{#1}% put the sup in box 0
[EMAIL PROTECTED]@\scriptstyle{#2}% put the sub in box 2
\ifdim\wd\tw@>\wd\z@
[EMAIL PROTECTED] [EMAIL PROTECTED]@}%
\else
[EMAIL PROTECTED] [EMAIL PROTECTED]@}%
\fi
% Do not let a preceding mathord symbol approach without any
% intervening space.
\mathop{}%
% Use \mathopen to suppress space between the prescripts and the
% base object even when the latter is not of type ord.
[EMAIL PROTECTED]@}%
#3%
}
To port it to ConTeXt, I need something equivalent to [EMAIL PROTECTED],
which is defined in amsmath.
% [EMAIL PROTECTED]
% The function |[EMAIL PROTECTED]| takes three arguments; the third arg
% is typeset as a math formula in an hbox, using arg |#2| as the
% mathstyle, and the result is left in the box named by the first
% arg. It is assumed that we are already in math mode, so we can turn
% off |\everymath| (in particular, |[EMAIL PROTECTED]|).
% \begin{macrocode}
[EMAIL PROTECTED]@[EMAIL PROTECTED]
[EMAIL PROTECTED]
What is the correct way to define mathmeasure in ConTeXt? I do not
completely understand how math tokens are handled.
Thanks,
Aditya
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