Beats me. I did a copy and paste of your code and it seems fine. Rather
elegant in fact.
I did the same in a text editor and $\lambda_{max}=528nm$ seems fine.
Ubuntu 16.04; LyX 2.3.0.
While we are not using Windows, I'd try the traditional Reboot (just
because it's MS) and see if it helps.
On 16 April 2018 at 04:06, Wolfgang Engelmann <engelm...@uni-tuebingen.de>
wrote:
> I select in lyx (2.3.0) in math
> \lambda_{max}=528nm
>
> but get in the pdf output
>
> ̆max = 528nm
>
> why? (Debian stretch)
>
> Wolfgang
>
--
John Kane
Kingston ON Canada
