The typesetting of math in TeX is not without criticism, particularly with respect to technical details of the font metrics, which were designed in an era when significant attention was paid to storage requirements. This resulted in some "hacks" overloading some fields, which in turn required other "hacks". On an aesthetics level, the rendering of radicals has also been criticized. The OpenType math font specification largely borrows from TeX, but has some new features/enhancements.
the typesetting of math in tex is not without criticism particularly with respect to technical details of the font metrics which were designed in an era when significant attention was paid to storage requirements this resulted in some "hacks" overloading some fields which in turn required other "hacks" on an aesthetics level the rendering of radicals has also been criticized the opentype math font specification largely borrows from tex but has some new features/enhancements