noun
arithmetic progression; arithmetic sequence
A mathematical sequence where the difference between consecutive terms is constant.
等差数列の一般項を求める公式を覚えていますか。
Do you remember the formula for finding the general term of an arithmetic progression?
1, 3, 5, 7, … は初項1、公差2の等差数列です。
1, 3, 5, 7, … is an arithmetic sequence with first term 1 and common difference 2.