Problem 742. Symmetric matrix

Aurelien Queffurust

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You must create a n-by-n symmetric matrix such that A(row,col) = row/col for col >= row.
Example if n =3 :
output is : A =
      1.0000    0.5000    0.3333
      0.5000    1.0000    0.6667
      0.3333    0.6667    1.0000
since A(2,1) = A(1,2) = 1/2
or A(3,1)= A(1,3) = 1/3

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Solution Stats

699 Solutions

344 Solvers

Last Solution submitted on Feb 12, 2026

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Problem Comments

1 Comment

Marco Riani on 31 Jan 2022

In my opinion the caption of the problem "Symmetric matrix" has to be changed because it is too vague. I would suggest something like symmetric matrix with i,j=i/j