Uppercasing is heavily dependent on context. Even the ASCII characters are context dependent. a+b=d+d Shouldn't be uppercased. It's an insoluble problem to p

Uppercasing is heavily dependent on context. Even the ASCII characters are context dependent. a+b=d+d Shouldn't be uppercased. It's an insoluble problem to put contextual semantic info into Unicode characters, because individual characters have no context.