望ぼう遠えん鏡きょう級きゅう数すう

noun

telescoping series

Rare mathematical term for a series where partial sums cancel intermediate terms, leaving only the first and last.

• 望ぼう遠えん鏡きょう級きゅう数すうは、部ぶ分ぶん分ぶん数すう分ぶん解かいを使つかって和わを求もとめることが多おおい。

  Telescoping series often use partial fraction decomposition to find the sum.