表达式计算器，可以对一个表达式直接求值。

给出语言变量E的赋值表、EC的赋值表、U的赋值表以及Fuzzy状态控制表，求Fuzzy控制器查询表R

Algorithm::Evolutionary provides classes for performing simple evolutionary computation tasks, including definition of objects from XML and SOAP support. It should be interoperable with other EC libraries using SOAP.