一个多项式计算器，能计算多项式的值，对多项式求和差积商余，积分微分，等小功能，是中科大顾为滨老师的作业题，界面友好，容错性好-A polynomial calculator can calculate the value of the polynomial USTC Gu Bin teacher job title, the polynomial summation poor plot I, integral-derivative, and other small, friendly inter