# [NTG-context] Bug in math arrows

Wed Jan 10 18:46:13 CET 2018

```On Wed, 10 Jan 2018, Wolfgang Schuster wrote:

>
>>  10. Januar 2018 um 17:27
>>  Hi,
>>
>>  There is a bug in extensible arrows. The syntax of extensible arrows is:
>>
>>  \xleftarrow{below}{top}
>>
>>  but when the optional argument is used
>>
>>  \xleftarrow[small]{A}{B}
>>
>>  then A ends up on the top and B on the bottom.
>
> The "x" commands change the position of both texts and when you change
> the instance for the command the reversed order is overwritten (search for
> the order key in math-stc.mkvi).
>
> \starttext
>
> \$\xleftarrow{A}{B}\$
>
> \$\mleftarrow{A}{B}\$
>
> \stoptext

I would still consider it a bug :-) Either order is fine but it should be
used consistently.