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2-2.m

x = logspace(-1,2);%产生具有log特性点组 loglog(x,exp(x))%绘制双对数图形 grid on %打开网格线

2-2.m

z1 = [1 2 4;3 4 1]; z2 = [-1 2 2; -5 -6 1]; b=[0;-1]; con1=concur(b,3); n1 = netsum(z1,z2) n2 = netprod(z1,z2) n3 = netsum(z1,z2,con1)