What's the difference between square brackets and round brackets?

Related questions

1. How do you use parentheses and brackets?
2. Why are square brackets used in quotes?
3. What are angled brackets?
4. What do square brackets around a letter mean?
5. What are angle brackets used for?
6. Is expanding brackets the same as multiplying brackets?
7. How do you know when to use parentheses or brackets?
8. What is the use of square brackets?
9. What does expand the brackets mean?
10. What is a Square B Square equal to?

Tags

1. #simply
2. #referred
3. #nearly
4. #these
5. #square
6. #grammarians
7. #round
8. #replaced
9. #brackets
10. #commas
11. #hearing
12. #parentheses
13. #refers
14. #however
15. #cases
16. #generally