function [ ] = forloopef(x , y, m, n) while x 7 [m] = m - 14 end while n > 7 [n] = n - 14 end hold on rectangle('Position',[x y m n]) axis([0 100 0 100])

Why does my code only print the final iteration?

Bennie Forbes

2017 3 19

0 个回答

3 次查看（30 天）

0 个投票

function [ ] = forloopef(x , y, m, n)
while x < 49
    [x] = 7 + x
end
while y < 49
    [y] = 7 + y
end
while m > 7
    [m] = m - 14
end
while n > 7
    [n] = n - 14
end
hold on
rectangle('Position',[x y m n])
axis([0 100 0 100])

3 个评论
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Guillaume 2017-3-19

在 MATLAB Online 中打开

Note 1: I would get out of the habit of writing brackets [] around the assignee in your code. Not only is it completely unnecessary, it is also likely to cause you problems in some future code.

x = 7 + x

works just as well.

Note 2: And of course none of the while loops are necessary:

x = max(x, mod(x, 7) + 49);
y = max(x, mod(y, 7) + 49);
m = min(m, mod(m + 6, 14) - 6;
n = min(m, mod(n + 6, 14) - 6;

Image Analyst 2017-3-19

编辑：Image Analyst 2017-3-19

Don't double space code to format it. Simply learn to format it. See the tutorial: http://www.mathworks.com/matlabcentral/answers/13205#answer_18099 Basically, paste in code, highlight it, and click the {}Code icon.