Getting rid of zeros in matrix

Question

Katrina 2015-9-14

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/242965-getting-rid-of-zeros-in-matrix

评论： Katrina 2015-9-17

I need to find solutions to right triangles when I run my code I get the answers but it is separated by rows of all zeros like this:

and so on. Here is my code:

for a=1:50;
  for b=a:50;
      c=sqrt(a^2+b^2);
      if c<=50 && c==floor(c)
          matrix=[a,b,c];
          mat(c,:)=matrix
        end
    end
end
mat

Any suggestions on how to fix this? Thank you! :)

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Answer 1

Jan 2015-9-14

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/242965-getting-rid-of-zeros-in-matrix#answer_192337

在 MATLAB Online 中打开

index = 0;
for a=1:50;
  for b=a:50;
    c = sqrt(a^2+b^2);
    if c<=50 && c==floor(c)
        index = index + 1;
        mat(index,:)=[a,b,c];
      end
  end
end