matrix questions

[Bama Braille]

1. can I use the vertical bar symbol for the broken line within the matrix?
2. since the arrows don't point to a specific row, can I omit them?
3. what would you recommend for the the comments following the matrices, is keying the preferred method?

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[Bama Braille]

Hello. Thank you for this interesting example. The vertical line in an augmented matrix can be spurred, or it can be made with a tactile strip. You can also use spaced braille dots (456) if you explain in a transcriber's note. I have answered your other questions in the attached file which also includes a simbraille example of Step 3. I would not use a key since there is no reason to follow the side-by-side print layout.

[Lindy Walton]

Lindy, you are wonderful! The simbraille example was most helpful, thank you.

[Author]

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