magic_matrix, an Octave code which computes a magic matrix, for any odd order n, such that all rows and columns have the same sum.

A magic matrix is an n by n array, whose entries include each positive integer from 1 to n^2, in such a way that each row and column has a common sum. Sometimes the diagonals also form this sum.

When n is odd, there is a simple algorithm for producing a corresponding magic square. When n is even, (and greater than 2!) there is a different, more complicated, algorithm. This code only implements the algorithm for the case when n is odd.

For general purposes, the MATLAB built-in function magic(n) is available, which can handle both odd and even values of n.


The computer code and data files made available on this web page are distributed under the MIT license


magic_matrix is available in a MATLAB version and an Octave version and a Python version.

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  1. Christian Hill,
    Example E6.2,
    Learning Scientific Programming with Python,
    Cambridge University Press,
    Second Edition, 2020,
    ISBN: 978-1108745918

Source Code:

Last modified on 05 December 2022.