location of element in matrix

I have a matrix mat and I want to find location of x in mat matrix.location should be in order of x.

mat =[

    1.0000    1.0000    1.0000    1.0000    1.0000    1.0000
    0.0099    1.0000    1.0000    0.0120    1.0000    0.0115
    0.0093    1.0000    1.0000    0.0120    1.0000    0.0070
    1.0000    1.0000    1.0000    1.0000    1.0000    1.0000
    0.0098    1.0000    1.0000    0.0089    1.0000    0.0093
    1.0000    1.0000    1.0000    1.0000    1.0000    1.0000];

x =[

    0.0089
    0.0099
    0.0070];
A =mat
  C=x
numbersInA = unique(C)
numbersInC = unique(C)
for k = 1 : length(numbersInA)
  [rowA colA] = find(A==numbersInC(k))
  w(k,:)= [rowA , colA]
end
ans is [ 3   6]
     [5     4]
     [2     1]
but I need this solution::
[5 4]
[2 1]
[3 6]
Thanks in advance.

[Stephen23]

Do NOT use ismember ! See my answer for the reason why.

https://www.mathworks.com/matlabcentral/answers/337143-find-same-pair-values-from-two-variables#comment_448588

Answer 1

[Andrei Bobrov]

[l0,ii] = ismembertol(mat(:),x);
[i0,j0] = ind2sub(size(mat),find(l0));
[~,i1] = sort(ii(l0));
out = [i0,j0];
out = out(i1,:);

Answer 2

[Stephen23]

Do NOT use ismember

Those are floating point values. It would be an extremely bad idea to use ismember on floating point values, because ismember tests for equivalence of the values. Really bad idea:

https://www.mathworks.com/matlabcentral/answers/57444-faq-why-is-0-3-0-2-0-1-not-equal-to-zero

https://www.mathworks.com/matlabcentral/answers/316183-floating-point-numeric-problem

https://www.mathworks.com/matlabcentral/answers/272092-basic-indexing-question-find-ismember

https://www.mathworks.com/matlabcentral/answers/328297-i-am-facing-a-problem-with-ismember-subfunciton-in-matlab

https://www.mathworks.com/matlabcentral/answers/281050-ismember-function-and-find-function-in-the-matlab-is-not-responding-for-some-values-please-check-th

Those values should be compared using a tolerance, or with ismembertol.

[Andrei Bobrov]

+1

Answer 3

[Azzi Abdelmalek]

Use ismember function