论文部分内容阅读
我们都知道实数“绝对值”的意义,那就是:正数的绝对值是它的本身,负数的绝对值是它的相反数,零的绝对值是零.在数轴上,表示数的点离开原点的距离是多少个单位,那么这个数的绝对值就是多少.下面我们结合实际例子来进一步理解绝对值意义和体会绝对值符号的应用.
We all know the real number “absolute value”, meaning that the absolute value of a positive number is itself, the absolute value of a negative number is its opposite number, and the absolute value of zero is zero. On a number axis, The number of points from the origin is the number of units, then the absolute value of this number is how much. Below we combine practical examples to further understand the meaning of absolute value and experience the application of absolute symbols.