等差数列
Traditional form:
等差數列
Pinyin (reading):
děngchāshùliè
Definitions:
- arithmetic progression
Characters:
- 等 - rank, grade; same, equal; to wait
- 差 - difference, gap; almost, nearly; in error; an officer
- 数 - count, number, several
- 列 - a line; to arrange, to classify
Traditional characters: