功能齐全的计算器可以实现加减乘除运算，在eclipse下开发的java应用程序。-Fully functional calculator arithmetic operations can be achieved, in eclipse java application development.

计算器加减乘除开方等运算！与电脑上的计算器极为相似，而且是运用JS制作的！有易于参考！-Square root calculator, Math and other operations! Calculators and computers are very similar, and is produced using JS! Have easy reference!