arithmetic progression
arithmetic progression
ˌarithmetic pro<ʃoŋð style="font-weight:normal">'gression
◙noun [C]
1. a set of numbers in order of value in which a particular number is added to each to produce the next (as in
• 2, 4, 6, 8, ...) 算术级数，等差级数;
--› geometric progression
