cout<<"牛顿插值公式-->"<<endl; cout<<"通过牛顿插值公式求得:当X="<<X<<"时,Y="<<Nowton(X,n,x,y)<<endl;//输出调用函数Nowton// return 0; } double lagrange(double F,int m,double f[],double g[]) { int a,b; double Y=0,la=0; for(b=0;b<m;b++)//完成公式f(Xn)外层...