[texhax] Odd behavior in a \mathop
Michael Barr
barr at math.mcgill.ca
Mon Nov 3 18:52:48 CET 2008
Well, you live and learn. I never knew that. I should have checked out
\mathop in the TeXBook.
Thanks, Michael
On Mon, 3 Nov 2008, Aditya Mahajan wrote:
> On Mon, 3 Nov 2008, Michael Barr wrote:
>
>> If you compile the file
>> \documentclass{article}
>> \newcommand\II{\mathop{I\mkern-1mu I}}
>> \newcommand\I{\mathop{I}}
>> \begin{document}
>>
>> $AB\II L$
>>
>> $AB\I L$
>>
>> \end{document}
>>
>> you will see (or I do anyway) that the I in the second, but not the first,
>> formula is going distinctly below the line. What is going on here?
>
> If its argument is a single character, \mathop centers it to with respect to
> the math-axis.
>
> You can define
>
> \newcommand\I{\mathop{\kern0pt I}
>
> to avoid this.
>
> Aditya
>
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