Make a cross from "1" in odd size array. Other value from array should be equal to "0";
As input you get length of side of array;
y=[ 0 1 0;
1 1 1;
0 1 0];
please pay attention input will be always odd nubmer greater than 1;
this problem seems to have stopped working probably due to function name shadowed by cross-product cross function
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