Creating a fractal using for and if structures

Question

Emani Dotch 2019-9-7

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/479354-creating-a-fractal-using-for-and-if-structures

回答： Mohammad Hadi Namdar 2021-6-2

Hi! I'm relatively new at using MATLAB. I'm trying to create a fractal from a given algorithm and this is the code I made. When I run the code I only get an empty plot. Any ideas as to what I'm doing wrong? (I'm sure a lot haha!) I appreicate your help.

m = 2;
n = 1;
hold on
for ii = 1:1000
    q = 3*rand(1);
    if q < 1
        m = m/2;
        n = n/2;
    end
    
    if q < 2
       m = m/2;
       n = (300+n)/2;
    end 
    if i <1000
        plot (m,n)
    end
    hold off
end

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Walter Roberson 2019-9-7

在 MATLAB Online 中打开

plot (m,n,'*')

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Answer 1

Nishant Gupta 2019-9-12

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https://ww2.mathworks.cn/matlabcentral/answers/479354-creating-a-fractal-using-for-and-if-structures#answer_391504

在 MATLAB Online 中打开

Hi Emani,

As Walter said you can use this line:

plot (m,n,'*');

to get the point on the plot and if you want all the points you can delete 'hold off' from your code. Then the plot will be as follows:

$fractal.jpg$

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Answer 2

Mohammad Hadi Namdar 2021-6-2

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/479354-creating-a-fractal-using-for-and-if-structures#answer_715575

在 MATLAB Online 中打开

function func_q26(m,n)
figure(1)
hold on
for i = 1:100000
    q = 3*rand(1);
    if q < 1
        m = m/2;
        n = n/2;
        if i < 1000
            plot(m,n,'.k')
        else
            break
        end
    elseif q < 2
        m = m/2;
        n = (n+300)/2;
        if i < 1000
            plot(m,n,'.k')
        else
            break
        end
    else
        m = (m+300)/2;
        n = (n+300)/2;
        if i < 1000
            plot(m,n,'.k')
        else
            break
        end
    end
end
hold off