含义丰富的0

• 出 处: 家教世界
• 发表日期: 2014年05期
• 关键词: 温度 发射 精确度 气温 口令 计算 电台 电视 导弹 程度 冰点 报告

0,通常表示什么也没有。但实际上零表示的意义非常丰富。0不但可以表示没有,也可以表示有。电台、电视里报告气温是0度,并不是指没有温度,而是相当于华氏表32度,这也是冰点的温度。0还可以表示起点,如发射导弹时的口令是:“9,8,7,6,5,4,3,2,1,0——发射”。0在数轴上作为原点,也是起点的意思。0还可以表示精确度。如在近似的计算中,7.5与7.50表示精确程度不同。

0, usually means nothing. But in fact the meaning of zero is very rich. 0 not only can not say, you can also have said. Radio and television reported that the temperature is 0 degrees, does not mean that there is no temperature, but the equivalent of 32 degrees Fahrenheit, which is freezing temperature. 0 can also indicate the starting point, such as the time of the missile is: “9,8,7,6,5,4,3,2,1,0 - Launch”. 0 on the axis as the origin, but also the starting point. 0 can also represent the accuracy. As in the approximate calculation, 7.5 and 7.50 that the accuracy is different.