Pyramidal number

A pyramidal number is a figurate number that represents a pyramid with a polygonal base and a given number of triangular sides. The term usually refers to square pyramidal numbers, which have a square base with four sides, but it can also refer to:

as well as to pyramids with higher numbers of sides

单词	Pyramidal number
释义	Pyramidal number 英语百科 Pyramidal number A pyramidal number is a figurate number that represents a pyramid with a polygonal base and a given number of triangular sides. The term usually refers to square pyramidal numbers, which have a square base with four sides, but it can also refer to: as well as to pyramids with higher numbers of sides
随便看	Phase comparsion phase compatibilizer phase compensated cable phase compensated cyclotron phase compensating circuit phase compensating device phase compensating network phase compensating transformer Phase compensation phase compensation network phase compensation system phase compensation transformer phase compensator phase composition phase compound excitation phase compression phase computation phase condenser phase condition phase conductor phase confounded design phase confounded designs phase conjugate phase conjugate interferometry phase conjugate system