为用户提供加、减、乘、除等基本的数学计算，还可以暂存计算结果，在需?要时通过“取存”键调出来再与其他计算结果进行运算。除了基础版外，还提供高级版的计算器，加入了圆周率、正弦、余弦、正切、对数等计算功能，力求满足广大网友的需要。(To provide users with subtraction, multiplication, addition, and other basic mathematical calculations, can also result in temporary, I need to through the "deposit" key tune out this and other results. Besides the basic version, also provides the advanced version of the calculator, with PI, sine, cosine, tangent, the number of calculation functions, and strive to meet the needs of the majority of users.)