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Hyperbolick (talk  contribs) (Help needed: Natural ordering) 

</math>
where <math> 2 \le i \le m1 </math> and <math> 2 \le j \le n1 </math>. The preferred arrangement of the solution vector is to use [[natural ordering]]{{dndate=March 2017}} which, prior to removing boundary elements, would look like:
:<math>
