Hence, "approximation". In particular, XML isn't a programming language, so questions about it are more likely to pertain to writing parsers and the like. TeX u

Hence, "approximation". In particular, XML isn't a programming language, so questions about it are more likely to pertain to writing parsers and the like. TeX users may well have other sources for answering their questions. The approximation is very rough, but there is clearly a signal in the noise.