安卓计算器，含有科学计算器、单位转换、汇率转换、贷款计算等功能-Andrews calculator, containing scientific calculator, unit converter, currency converter, loan calculator and other functions

多功能的计算器demo，能够实现模数转换、程序员模式等功能-Multifunctional calculator demo, analog to digital conversion can be realized, the programmer mode functions

Android 计算器源码之逆波兰算法 基于Android 4.2.2 做的一个简易计算器，采用逆波兰算法，将中缀表达式转换为后缀表达式，可解析带括号的四则运算-Based on the Android 4.2.2 do a simple calculator, using the algorithm of reverse polish, convert infix expressions to postfix expression, can parse arithmetic with pa