How can Edward Elric transmute without a circle?

Related questions

1. How old was Edward Elric at the end of brotherhood?
2. Does Edward die in Fullmetal Alchemist Brotherhood?
3. Did Ed get his alchemy back?
4. Do I need to watch Fullmetal Alchemist to understand brotherhood?
5. Does Edward lose his alchemy?
6. How did Edward Elric lose his arm?
7. Is Fullmetal Alchemist the same as Brotherhood?
8. Do Edward and winry end up together?

Tags

1. #edward
2. #transmutations
3. #circle
4. #means
5. #least
6. #array
7. #claps
8. #alchemy
9. #brotherhood
10. #manga
11. #anime
12. #human
13. #curtis
14. #transmutation
15. #because
16. #perform
17. #explained
18. #becomes
19. #izumi
20. #without
21. #result
22. #attempted