I am not sure how this look in other people's editors and mail-
readers, but on my machine (Mac OS X Tiger) there
is significantly more white space after the symbol than before. Is
that normal?
For emacs, just bind a key (C-. say) to (ucs-insert
#X2218). ucs-insert comes from ucs-tables.
You can also activate the TeX input method using C-u C-\ TeX RET (if
leim is installed). Then you can insert many characters by typing
their TeX names. The character ∘ can be inserted by typing \comp,
for
instance.
Doaitse Swierstra
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