Have you tried I ?
On Sep 28, 2013, at 1:43 PM, pradeep thakur <pskvkthakur@gmail.com> wrote:
> Dear All,
>
> How can I introduce "i" (square-root of -1) into the model library (models.xml file)? I'm unable to define new site- and bond-operators which involve "i".
>
> Any help will be very much appreciated.
>
> With regards,
> Pradeep Thakur
> Dept. of Physics.,
> University of Pune,
> Pune, Maharashtra, INDIA.