定义:设x为任意实数,用[x]表示不超过x的所有整数集合中的最大者,称[x]为高斯符号.函数y=[x]称为高斯函数或取整函数.含有[x]的方程,不妨称之为高斯方程.当[x]的次数为1时称为高斯一次方程;当[x]的次数为2时,称为高斯二次方程;如[x]~2-3x=0,当[x]的次数为n时,称 Definition: Let x be an arbitrary real number, [x] represents the largest of all integer sets that do not exceed x, and let [x] be a Gaussian symbol. The function y = [x] is called a Gaussian function or a rounding function. x] equation, may wish to call the Gaussian equation. When the number of [x] is 1, called the Gaussian equation; when the number of [x] is 2, called the Gaussian quadratic equation; such as [x] -3x = 0, when [x] the number of times n, said