Re: DeclareMathOperator and digit in operator name

st 17. 12. 2025 v 16:15 odesílatel Vincent Lefevre <[email protected]> napsal:
>
> On 2025-12-17 14:53:50 +0000, Ji Luo wrote:
> > An easier hotfix is
> >
> > \DeclareMathOperator{\myFast}{whatever}
> > \def\Fast2Sum{\myFast}
>
> Thanks. Actually, just adding
>
> \def\Fast2Sum{\FastTwoSum}
>
> *before* the existing
>
> \DeclareMathOperator{\Fast2Sum}{Fast2Sum}
>
This is not a good solution. If you later define
\def\Fast3Sum{\FastThreeSum}
\Fast2Sum will cause an error because you redefined \Fast to require 3Sum.

> seems to work.
>
> > But of course avoiding numbers in csname is the sustainable way to go.
>
> Yes, that's just for old versions from the git repository
> (which cannot be fixed retroactively).
>

Zdeněk Wagner
https://www.zdenek-wagner.eu/


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