As described in c:recognition, no semantic interpretation is attached to mathematical content at the recognition step. AsTeR can be enhanced to recognize specialized notation and produce context-sensitive renderings (e.g., speak [tex2html_wrap5734] as ``x squared''). Some context-specific processing is needed to produce such renderings, and this section outlines the kind of information that is available: the weight of an object and special patterns.
Measure weight quantifies the complexity of math expressions. The weight function is defined as follows: