MATLAB嵌套循环语句

MATLAB还允许在另一个循环中使用一个循环。

MATLAB中嵌套的for循环语句的语法如下：

for m = 1:j 
for n = 1:k 
 <statements>;

       end 
end

MATLAB中嵌套的while循环语句的语法如下：

while <expression1>
 while <expression2>
      <statements>
      end
end

例子

我们可以使用嵌套的for循环显示从1到100的所有素数。

for i=2:100
         for j=2:100
               if(~mod(i, j))
                    break; % if factor found, not prime
              end
        end
        if(j > (i/j))
                  fprintf('%d is prime\n', i);
        end
end

输出

2 is prime
3 is prime
5 is prime
7 is prime
11 is prime
13 is prime
17 is prime
19 is prime
23 is prime
29 is prime
31 is prime
37 is prime
41 is prime
43 is prime
47 is prime
53 is prime
59 is prime
61 is prime
67 is prime
71 is prime
73 is prime
79 is prime
83 is prime
89 is prime
97 is prime