ArrayRules

ArrayRules(sparse-array)

return the array of rules which define the sparse array.

ArrayRules(sparse-array, defaultValue)

return the array of rules which define the sparse array and set the new defaultValue.

ArrayRules(nestedLists)

return the array of rules which define the nested lists.

>> a = {{{0,0},{1,1}},{{0,1},{0,1}}}
{{{0,0},{1,1}},{{0,1},{0,1}}}

>> ArrayRules(a)
{{1,2,1}->1,{1,2,2}->1,{2,1,2}->1,{2,2,2}->1,{_,_,_}->0}