identifying what topic/subject

[u/ServiceImportant4987]

i was tired from working and i still go to my class and i just zoned out and didn't know what topic my professor was teaching, it would be so nice if it help identify what topic from this for me to catch up

1st cycle x = 0, n = 5, temp = ?

2nd cycle x = 1, n = 5, temp = 7

3rd cycle x = 2, n = 5, temp = 5

all i know is there is also a 4th cycle :D