A MxN array to MNxMN

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Hello, i`m kinda newbie in programming and i`m stuck into a problem:i have a bidimensional array A of size [M,N] and i need to make another array B of size [M*N,M*N] with the values from the first array and the elements with same indices (for example B[3,1] and B[1,3] ) have the same values. What is the fastest programmable way to to this (it must be as faster as it can,because it will work with thousands of numbers)

Posted 9-Apr-12 10:47am

aryx123

Updated 10-Apr-12 3:29am

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Dr.Walt Fair, PE 9-Apr-12 19:11pm

What algorithm or formula do you need to apply to get the new M*N x M*N matrix from the old A[M*N]? If you don't require any particular formula, there are a multitude of ways to do that, the easiest being to just create an M*N x M*N dimensioned array and fill it with something like 0.

However, I suspect that's not what you meant, so you need to clarify what formula needs to be used.

Sergey Alexandrovich Kryukov 29-May-12 13:19pm

The problem is well solved using Array.Copy -- I answered.
--SA

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Sergey Alexandrovich Kryukov · Accepted Answer · 2012-04-09T10:57:00

Solution 1

To accelerate things and avoid element-by-element cloning, use Array.Copy methods. Please see:
http://msdn.microsoft.com/en-us/library/system.array.copy%28v=vs.100%29.aspx[^].

—SA

Posted 9-Apr-12 10:57am

Sergey Alexandrovich Kryukov

A MxN array to MNxMN

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A MxN array to M*NxM*N

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A MxN array to MNxMN