just to start, if this already exists, please tell me!
If not, then here's my idea to change that:
(Link if it doesnt load: http://imgur.com/sx72Cs5)
As someone who likes to write fast, and consequently does a lot of mistakes, i wanted a system where you could relatively easily rectify your error, as the numbers are essentially extentions of each other. I used snippets from the dragon font to make the symbols
If you have any ideas or suggestions, please tell me. If not, tell me what you think!