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c++cmathmatrixsymmetric

Symetrical positions in matrix

Given an (i,j) element in a matrix what is the symmetrical correspondent in the matrix. I am trying to create a function that generates a symmetrical matrix in c. Thanks a lot.

Also would it be wise to create a matrix "by hand" using the rand() functionality or read from file, if I am dealing with large matrixes?

Solution

  • Given an (i,j) element in a matrix what is the symmetrical correspondent in the matrix

    In a symmetric matrix A, A(i, j) == A(j, i).

    Also would it be wise to create a matrix "by hand" using the rand() functionality or read from file, if I am dealing with large matrixes?

    This is impossible to answer without some context. However, if you want a random matrix and don't need to preserve it across runs, there's no reason to save it in a file.