Is there anything that you can do, to avoid actually having to store 4^7^2 entries?   Is the matrix sparse .. in other words, are most of the entries zero (or some other known value)?   Any matrix can be expressed as a list ... (x, y, value) ... therefore also as a database table.   Even though, mathematically speaking, the values are a matrix, it might not be physically possible to store it in the computer’s memory as one.

In reply to Re: Efficiency of implementation by Anonymous Monk
in thread Efficiency of implementation by azheid

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