| A | B |
|---|
| sequence | a list of numbers |
| series | the sum of a sequence |
| arithmetic sequence | a list with a common difference |
| arithmetic series | the sum of an arithmetic sequence |
| geometric sequence | a list with a common ratio |
| geometric series | the sum of a geometric sequence |
| finite sequence | a sequence that has a |
| infinite sequence | a sequence that continues without end |
| a_1 | the first term |
| a_n | the nth term |
| d | common difference |
| r | common ratio |
| n | the number of terms |
| means | the terms between 2 nonconsecutive terms |
| sigma notation | shorthand notation for sum of a series |
| convergent | an infinite series that has a sum |
| divergent | an infinite series that does NOT have a sum |
