What's the name of the storage paradigm that uses cubes subdivided into 8 smaller cubes ad infinitum?

Posted by Eric on Stack Overflow See other posts from Stack Overflow or by Eric
Published on 2011-01-09T17:44:34Z Indexed on 2011/01/09 17:54 UTC
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If I have a cube divided into 8 smaller cubes, each of which may be subdivided into a further 8 cubes, ad infinitum, what is the name of my system?

I know that it's a special case of a tree, where each brance contains exactly 8 other leaves/branches.

I remember the name starting with "Oct", and there was a wikipedia article on it, but I honestly can't find it!

Does anyone know what such a data structure is actually known as?

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