[Solved] How much memory is required to store a matrix using the armadillo linear algebra package?

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The mat type stores an array of doubles, so to get the size of the array as bytes:

A.n_elem * sizeof(double)

The total amount of memory used by A is sizeof(A) + (A.n_elem * sizeof(double)).

solved How much memory is required to store a matrix using the armadillo linear algebra package?