1）由输入的实部和虚部生成一个复数

2）两个复数求和； 3）两个复数之差；

4）两个复数之积； 5）从已知复数中分离出虚部

6）从已知复中分离出实部。

7）运算结果以相应的复数或实数的表示形式显示。

-1) by the input of real and imaginary parts generate a plural 2) sum of the two plural　3) the difference between the two plural　4) the product of two plural　5) from the known complex isolated imaginary part 6) from the known complex isolated real part. 7) the results of operations to the corresponding real number or plural form of that.