Thank you for your answer! It was fascinating!
As I recall, I was introduced to the Braille symbols for each math concept as they came up during my math lessons.
When you learned Braille symbols for math, did you learn them in both Nemeth and literary American Braille or just literary American Braille? As a young student, could you read "1+1=2" in both literary and technical Braille? Which was more typical to encounter?
[UEB] was designed to make Braille translation easier for computers, not to be a good reading experience for humans.
I cannot read Braille, so my knowledge is theoretical. I thought UEB was mainly adopted to ease printed communication between English-speaking people in different countries. I assumed that computers could transcribe Unicode characters to American Braille just as easily as to UEB. What makes UEB easier for computers, but less readable for people? Do bathroom signs and elevator buttons use UEB or American Braille? Which is more prevalent in printed books? How does Nemeth compare for readability?
I was taught to use an abacus instead of trying to replicate pencil and paper calculations in Braille.
I did not consider the value of an abacus for teaching math today! I was mildly curious about how to use them, but now I need to learn. Thank you for that insight!