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arithmetic progression

/əˈrɪθmətɪk prəˈɡreʃən/

翻译: 一个数列,其中任意两个相邻项之间的差是常数,例如 2, 4, 6, 8。

1 个条目

phrase

C1formalcommonscientific/əˈrɪθmətɪk prəˈɡreʃən/

A sequence of numbers in which the difference between any two consecutive terms is constant, such as 2, 4, 6, 8.

  • 🇨🇳一个数列,其中任意两个相邻项之间的差是常数,例如 2, 4, 6, 8。
  1. Sequence with constant difference B2 formal

    A sequence of numbers in which the difference between any two consecutive terms is constant.

    • The sequence 2, 4, 6, 8 is an arithmetic progression with a common difference of 2.
    • In an arithmetic progression, the nth term can be found using the formula a + (n-1)d.
    • The sum of the first n terms of an arithmetic progression is given by n/2 times the sum of the first and last terms.

    🇨🇳等差数列