50g

Hi

I download this lib ( http://www.hpcalc.org/details.php?id=3181 ), And
I wanted to create my personal equation lib.
I can done it, but I couldn't insert informations about equations.
I looked the doc, and I must tape this command:
TAG:{0 "INFO1"}
But It doesn't work. I've this message :" Invalid Syntax"
And with this:
TAG :: {0 "INFO1"}
I've this :"Error: Undefined XLib Name"

So I think missed a lib, but which one?!

Thanks a lot for your Help.

Nico :)