北航数值分析作业第三题 试用数值方法求出f(x,y)在区域D={(x,y)|0<=x<=0.8,0.5<=y<=1.5}上的一个近似表达式-Northern Numerical Analysis Numerical Methods for operating the third try find the problem f (x, y) in the region D = {(x, y) | 0 < = x < = 0.8,0.5 < = y < =

实现计算机面板构建。并实现简单的计算功能。-Construction panel by computer. And simple calculation functions