Some special characters missing, are these difficult to add?

[kekearif]

Hey, I have noticed that there are some characters missing such as \bigtriangleup and various others (can see them here http://www.combinatorics.net/weblib/A.6/a6.html). Would it be difficult to add these commands? What would be the basic steps required to do this? thanks!

[kostub]

These are easy to add in your own code as follows:

[MTMathAtomFactory addLatexSymbol:@"<symbolname>"
                            value:[MTMathAtom atomWithType:kMTMathAtomRelation 
                                                     value:@"<unicodevalue>"]];

If there are standard symbols that should be included for everyone let me know.