@sim = (
1.0,	0.9,	0.3,	0.6,	0.3,	0.3,	0.2,	0.3,	0.3,
0.9,	1.0,	0.3,	0.5,	0.3,	0.1,	0.2,	0.3,	0.4,
0.3,	0.3,	1.0,	0.6,	0.3,	0.2,	0.2,	0.3,	0.4,
0.6,	0.6,	0.6,	1.0,	0.2,	0.2,	0.3,	0.4,	0.5,
0.3,	0.3,	0.3,	0.2,	1.0,	0.1,	0.3,	0.4,	0.5,
0.3,	0.2,	0.2,	0.2,	0.1,	1.0,	0.2,	0.3,	0.2,
0.1,	0.2,	0.2,	0.3,	0.3,	0.1,	1.0,	0.8,	0.6,
0.3,	0.3,	0.2,	0.4,	0.4,	0.3,	0.8,	1.0,	0.8,
0.3,	0.4,	0.4,	0.5,	0.5,	0.2,	0.6,	0.8,	1.0 );

##</code><code>##

@index_ordered = (
0, 1, 3, 2, 5, 8, 4, 7, 6,
1, 0, 3, 8, 2, 4, 7, 5, 6,
2, 3, 8, 0, 1, 4, 5, 7, 6,
3, 0, 2, 1, 8, 7, 6, 4, 5,
4, 8, 7, 0, 1, 2, 6, 3, 5,
5, 0, 7, 2, 3, 1, 8, 6, 4,
6, 7, 8, 3, 4, 2, 1, 5, 0,
7, 8, 6, 3, 4, 1, 5, 2, 0,
8, 7, 6, 3, 4, 2, 1, 0, 5 
);

# This is created manually

##</code><code>##

1.0, 0.9, 0.3, 0.6, 0.3, 0.3, 0.2, 0.3,0.3,

and the 'index' is:

0     1    2    3   4    5    6    7    8

#this index value is seen "as if" it is stored in one array,
#and not the overall index in @sim

##</code><code>##

0, 1, 3, 2, 5, 8, 4, 7, 6,