readme-tkz-base.txt 10/10/2007 You need another package : tkz-arith.sty to work with this package but it's necessary to have a new version of xkeyval.sty, xcolor.sty. You need also the package numprint.sty. It's the best way to work with numbers. Now the new version of frenchb-babel can work with it. The best way to work with tkz-base is to update pgf 1.18 with the cvs version If you have some problem to install it, send me an email. you find pgf 1.18 here : http://sourceforge.net/projects/pgf/ cvs version of some files here : http://pgf.cvs.sourceforge.net/pgf/pgf/generic/pgf/ in utilities, you find pgffor.code.tex. Often, I work with the macro \foreach The files in the folder "math", are all important for working with pgfmath. Regards Alain Matthes al(dot)ma at mac(dot)com