Definition of 等差数列 (とうさすうれつ)
とうさすうれつ
                        等差数列
とうさすうれつ
tousasuuretsu
noun
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arithmetic progression, arithmetic sequence(mathematics)
Related Kanji
| 等 | etc., and so forth, class (first), quality, equal, similar | 
| 差 | distinction, difference, variation, discrepancy, margin, balance | 
| 数 | number, strength, fate, law, figures | 
| 列 | file, row, rank, tier, column |