纵览2006年各省市的高考数学试题,几种比较特殊的函数在不同的试卷上居然有较高的出现率,这大概就是“英雄所见略同”吧.它们就是斜率有限函数(我们将其简称为 L 函数)、“耐克”函数(因其在第一象限的图象酷似耐克公司的图象标识而得名)、绝对值函数等等.以上述函数为背景的试题形 Looking at the 2006 college entrance examination mathematics test questions in each province, several kinds of special functions have higher occurrence rate on different papers. This is probably what “the hero sees.” They are the slope-limited functions (we It is referred to simply as the L function), the Nike function (because its image in the first quadrant resembles that of Nike), an absolute value function, and so on.