This is quite nice. The generalization of this to full formulas is much more difficult. In most languages, letters are designed to be distinct, and in case of confusion, many times a secondary pass with a dictionary [1] helps quite a lot.
But mathematics symbols are often quite close, as evidenced by this app. There are multiple suggestions for each input, and they are often quite close that without larger context it is difficult to tell which one the user meant. My handwritten mathematical x, greek chi, and the times symbol look very similar. Alpha and "proportional to". Etc etc. At minimum, the ai would likely need some understanding of the structure of mathematical statements and equations to do this better.
I prefer drawing with a pen, then a mouse, and only then my finger. When I lift my finger up and put it back down I don't know the exact point it'll register as!
Instead of drawing with a single isolated finger, try writing with an invisible pen: pinch your fingers together like you are holding a pen (e.g., index, middle, and thumb), lower it to the screen until one finger touches, and then draw as if you had a pen in your hand.
This lets you use your same muscle memory. No need to guess where your finger will register. I prefer this dramatically more than drawing with a mouse.
Handy, although gotta say I hate to be that person but GPT 4 is light years better than this tool. You can provide it with a picture of an equation you'd like to obtain as LaTeX commands and it'll do its job. Done it 30+ times so far and it's been 100% accurate.
LaTeX is one of those domains where GPT4 is amazing. Along with eMacs lisp, tho it is better at LaTeX than elisp, where I have had it cycle into non-convergent series of errors. Much better than it is at actually making sense of the mathematics, interestingly.
Seems like a different use case. This tool is very helpful when you know what the symbol looks like but you don’t have an example sitting in front of you.
https://facebookresearch.github.io/nougat/