Alternatives to . for composition

[Doaitse Swierstra]

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