Searching for equations

[Andrew Plewe]

Thanks everyone for the replies. I like Google because it searches ps 
and pdf files (and I've found a number of useful papers that way), but 
there isn't an escape character (that I know of, anyway) which will 
treat symbols such as + and - as literal characters. Do any of the other 
search engines do this? One route is searching Math ML marked text. The 
other would be doing literal searches for ASCII-formatted equations. I 
think between those two methods I can get relatively decent results.

	-Andrew Plewe-

Ralf Stephan wrote:
> Additionally, since it will still take some time until Project
> Gutenberg publishes old math books in TEI format (but I understand
> there is at least one posted already), the same time span applies
> to MathML from PG.
> 
> 
> ralf
>