Unified English Braille screen input

slash - dots 4-5-6 dots 3-4
Backslash dots 4-5-6- dots 1-6
Plus dot 5 dots 2-3-5
minus dot 5 dots 3-6
Times dot 5 dots 2-3-6
Divided by dot 5 dots 3-4
Equals dot 5 dots 2-3-5-6
per cent dots 4-6 dots 3-5-6
less than dot 4 dots 1-2-6
Greater than dot 4 dots 2-3-5
Left parenthesis dot 5 dots 1-2-6
Right parenthesis dot 5 dots 3-4-5
Left square bracket dots 4-6 dots 1-2-6
Right square bracket dots 4-6 dots 2-3-5

i'm not sure what othre symbols you would like but an easy way of finding out if you don't have a UEB learning resource is just to try different combinations with Voiceover and see what happens. That's what I do when I forget a UEB symbol and it was how I remembered the less than and greater than signs just now. There are plenty of free learning resources online too, form the RNIB and I believe the NFB among others. The IOS UEB table (called English unified system) is very good. I find it has a weakness when it comes to fractions, though. This is easily worked around by changing to the UEB Liblouis table (which you can do by swiping up with two fingers when in BSI screen away mode once you've added the Liblouis table) before writing your fraction and then reverting to the system table afterwards. the system table also appears to have trouble with the capitalised passage indicator (dot 6 dot 6 dot 6) which you should use if writing a passage three or more words in length in capitals, I believe. These are very minor issues though. I'd say the system table is by and large better at translating than the Libloius table, which has a few more curiosities.

I would also add that I know a lot of people don't like UEB on here and I can understand that particularly if you're from the US and need to write a lot of mathematical Braille. UEB maths is much closer to what we were used to in the UK and I think also Australia and New Zealand before UEB came along. Seriously, though, when you get used to it it's a much more flexible code particularly with symbols, accented characters, currency, styles and formatting. You also don't need to worry about computer braille when inputting web or email addresses. at least, not on IOS you don't.

How can some letter or number be brought under subscript in any of the braille tables?

I find it strange that a lot of Americans don't like UEB, when it was first founded in America in the first place.

I grew up on the British system, which is what we use in Australia, so I'm still getting use to UEB.

When I use to read Braille books, and they were from the US, they didn't have the dot 6 at the beginning of sentences, they were just assumed you know that a capital letter goes there.

This was in the late 80s, early 90s, so quite a lot has changed since then.

I found an online resource that lists the UEB symbols.

It's a shame you can't just ask Siri, well, you can, but it shows it to you as a picture, which isn't useful when you can't see.

Anyway, here's the link of Braille symbols for UEB.

https://www.pharmabraille.com/braille-codes/unified-english-braille-ueb-code/

It's the ones from the UK that didn't. I am Canadian and I have gotten used to the UEB system, and one thing I like about it is that the rules are a lot simpler for a beginner to learn.