MATLAB代码练习

• 求1到10的阶乘=

sum = 0;
for i=1:10
    re = 1;
    for j=1:i
        re=re*j;
    end
    sum = sum+re;
end

• 找出最大元素和最小元素所在的行列号

A = rand(3,3);
disp(A);
MAX = max(max(A));
MIN = min(min(A));
[r1,c1] = find(A==MAX);
[r2,c2] = find(A==MIN);

• 申请一个全0 的数组

a = zeros(1,10);

• 水仙花数

for n = 100:999
    a = floor(n/100);
    b = floor(rem(n,100)/10);%n对一百求余
    c = floor(rem(n,10));
    if n == a^3+b^3+c^3
        disp(n);
    end
end

• 求完数

for i = 2:500
    sum = 1;
    for j = 2:i/2
        if rem(i,j)==0
            sum=sum+j;
        end
    end
    if sum==i
        disp(i);
    end
end