2. The computer system of claim 1 , further comprising a subordinate sub-expression analysis component configured to determine dominant symbol candidates of the symbols and to determine subordinate symbols for the dominant symbol candidates.
2. The computer system of claim 1 , further comprising a subordinate sub-expression analysis component configured to determine dominant symbol candidates of the symbols and to determine subordinate symbols for the dominant symbol candidates. 3. The computer system of claim 2 , further comprising a subscript/superscript analysis and character determination component configured to identify subscript/superscript structures and symbol characters.