是一个印刷体数学表达式识别系统.能识别一些一般的印刷体数学表达式，为工程者计算者提供了方便，减轻了他们的工作量-A printed mathematical expression recognition system. Printed to identify some general mathematical expression for the project is calculated to provide a convenient, reducing their workload

只要输入任意数学表达式，就可以实现快速计算-arithmetic expression calculation