什么是循环小数一个无限小数,如果它的小数部分从某一位起,都是由一个或几个数字,依照一定的顺序不断地重复出现,这样的小数叫循环小数。其依次重复出现的一个或几个数字,叫做循环节。如下列循环小数:(1)0.205205205……的循环节是205。(2)7.13444……的循环节是4。为了书写简便,一个循环小数只写出不循环的 What is an infinite decimal fractional cycle, if its fractional part from a certain position, by one or several figures, in accordance with a certain order constantly repeated, such a decimal called cyclic decimal. One or more numbers that appear in turn are called looping sections. Such as the following cycle decimal: (1) 0.205205205 ​​...... The cycle is 205. (2) The cycle of 7.13444 ... is 4. In order to write simple, a circular decimal only write non-circular