区间数逆运算和简单的区间数方程

Reversed Operation of the Interval Number and Simple Interval Number Equation

区间数作为一类特殊的灰数，其某些性质和运算在文献［４］、［２］、［３］中已进行了讨论，本文以此为基础讨论了区间数的逆运算和简单的区间数方程。

Interval number is a special class of grey numbel, its property and operation have been discussed in articleS[4],[2],and[3],this paper thereon discussed the reversed operation of the intcrval number and its simple interval number equation