[PD] *weird* characters

[potax flan]

hi
using [textfile], i want to concatenate long strings of *unusual* characters
(like the "triangle" or Delta character you get by pressing ALT, caps, d).
maybe there is an alternative to [textfile]?
Is there a way to handle these characters in pd (have them in a message,
then add them to textfile would be wonderful)? if i press ALT caps d while
editing a message i get an error rectangle – is it because the font in pd
cant deal with the ∆ sign? can i use ascii codes for this? key gives me 8710
for delta, any way i can use that?
thanks
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