quadratic mean

短语

词形变化

quadratic means 复数 quadratic means

释义与例句

n.
  1. 1.

    A type of average, calculated as the square root of the mean of the squares, i.e. Q=√x_1²+x_2²+...+x_n²/n.

    数学

词源

Quadratic in the phrase refers to the squaring on the terms.

来源：wiktionary