It doesn't seem hard to me to put the symbols in the product, and allow users to draw mathematical formulas. Is the user pool too small to attract the interest of major software companies?
closed as not a real question by Jake, lockstep, Harish Kumar, egreg, Yiannis Lazarides May 19 '12 at 23:01
It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center. If this question can be reworded to fit the rules in the help center, please edit the question.