计算方法数值方程，用列主元Gauss消去法解释线性方程组Ax=b，其中A=[10E-8 2 3,-1 3.712 4.623,-2 1.072 5.643],b=[1,2,3]-Calculated value equation, the main-element Gauss elimination explanation of linear equations Ax = b, where A = [10E-8 2 3,-1 3.712 4.623,-2 1.072 5.643], b = [1

num=[2 1.4 -0.9 -0.158 0.4104 0.0294 -0.0668] den=[1] figure(1) zplane(num,den) num1=[1 2.7 -12.61 -24.757 66.301 62.072 -126.786] den1=[1] figure(2) zplane(num1,den1) num2=[0.2 -0.26 1.934 10.413 1.934 -0.26 0.2] den2=[1]