arithmetic sequence
nounUK /ˌærɪθˈmetɪk ˈsiːkwəns/
US /ˌærɪθˈmetɪk ˈsiːkwəns/
A list of numbers that go up or down by the same amount each time.
2, 5, 8, 11 is an arithmetic sequence because you add 3 each time.
RELATED WORDS
OTHER MEANINGS
2. A sequence in which the difference between consecutive terms is constant.
The sequence 10, 7, 4, 1 has a common difference of -3.
3. A progression studied in algebra where each term is found by adding a fixed number to the previous term.
Students learned to find the nth term of an arithmetic sequence.
4. Any ordered list of numbers generated by repeated addition of a constant.
Starting at 100 and adding 25 gives the arithmetic sequence 100, 125, 150, 175.