b 1 输入 matlab命令 4=1+a x6=2*b x7=[2,4;1,3:0,1 输出结果 x1= 4 x2 072 482 x5 03262 472524 431 8 1337 例4练习数组的运算 =[1,2,3;45,6] b=[-101;312] 输出结果:b = -1 0 1 3 1 2 输入matlab命令 x1=a' x2=a+b x3=a-b x4=1+a x5=a-1 x6=2*b x7=[2,4;1,3;0,1] x8=a*c 输出结果： x1 = 1 4 2 5 3 6 x2 = 0 2 4 7 6 8 x3 = 2 2 2 1 4 4 x4 = 2 3 4 5 6 7 x5 = 0 1 2 3 4 5 x6 = -2 0 2 6 2 4 x7 = 2 4 1 3 0 1 x8 = 4 13 13 37 例4 练习数组的运算， a=[1,2,3;4,5,6] b=[-1 0 1;3 1 2] 输出结果：