# Supplement to *Index assignment for two-channel quantization*

In the paper *Index assignment
for two-channel quantization*, my
coauthor József Balogh and I assert that for various values of
*N*, it is possible to arrange *N^2* consequtive
integers in an *N*-by-*N* matrix in such a way
that the maximal variance in a row or column is no more than a certain
*V(N)*, which is listed for each *N*. Here we exhibit the
arrangements that form the basis of these claims. Click on any variance
figure below to reveal the corresponding arrangement.
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