[Groff] Unkown mathematical sign

[Volker Wolfram]

        Hi,

        im using GROFF on OpenBSD and I’m really satisfied with this great soft‐
        ware and tools. But I’m a beginner and im looking for a  symbol  in  the
        ’eqn’ macro package. This is the ’element sign’ to describe an item in a
        mathematical quantity. I found this sign in LaTeX coded as ’in’.

        Can anyone help me to get this sign in GROFF?

        I thank you all for your support.

        Regards,

        Volker Wolfram

        Volker Wolfram
        location: /dev/null

        Nur solid gegründetes Nichtwissen ist bombensicher.