高中课本新人教A版必修1第25页第3题:函数f(x)=[x]的函数值表示不超过x的最大整数,例如,[-3.5]=-4,[2.1]=2.当x∈(-2.5,3]时,写出函数f(x)的解析式,并作出函数的图象.本题中的函数为高斯函数,只需对x进行分类讨论分段写出函数的表达式然后作出图象即可,题目虽然不难,但笔者发现,近年来一些省市高考﹑模考命题者对此类题型情有独钟,以此题 High school textbook rookie teach A version compulsory 1 Page 25 Question 3: The function value of the function f (x) = [x] represents the largest integer that does not exceed x, for example, [-3.5] = - 4, [2.1] = 2 When x∈ (-2.5,3), we write down the analytic formula of function f (x) and make the image of the function. The function in this problem is a Gaussian function, The expression and then make the image can be, although the title is not difficult, but I found that in some provinces and cities in recent years entrance exam ﹑ candidates have a soft spot for such questions, with the title