When you also masq the blank it's possible:
(%i1) \Delta\ u;
(%o1) Delta u
(%i2) \\Delta\ u;
(%o2) \Delta u
HTH
Volker van Nek
2013/1/1 Johan Ekh <ekh.johan at gmail.com>:
> Hi all,
> here comes a newbie question. I'd like to use symbols like "\Delta u" in
> mathematical expressions. It seems that maxima treats the above as two
> separate symbols but I'd like it to be a single symbol. Is this possible?
>
> Best regards
>
> Johan
>
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