Question

Matlab程序怎么运行出错！求解

Matlab程序怎么运行出错！求解a=rand(1000000,3);
a(:,1)=round(a(:,1)–0.2);
a(:,2)=round(a(:,2)*0.9–0.2–0.1*((a:,1)–1));
a(:,3)=round(a(:,3)*0.8–0.2–0.1*(a(:,1)–1)–0.1*(a(:,2)–1));
for i=1:6
b=a(1:10^i,3);
c(i)=sum(b)/(10^i);
end
c
for i=1:6
b=(~a(1:10^i,1))&(~a(1:10^i,2))&a(1:10^i,3);
d(i)=sum(b)/(10^i);
end
d
for i=1:6
b=a(1:10^i,1)&a(1:10^i,2)&a(1:10^i,3);
e(i)=sum(b)/(10^i);
end
e

Answer 1

程序主要的小错误有，

1、a(:,2)=round(a(:,2)*0.9–0.2–0.1*((a:,1)–1));标为粗体部分书写有问题，应改为

a(:,2)=round(a(:,2)*0.9–0.2–0.1*(a(:,1)–1))

2、运算符有错误，减号应用英文半角的形式输入

纠正上述错误，运行可得