Keywords: 4-ary Boolean functions; matrix ggbec 874.svg One of 39 ggbec<nowiki>s</nowiki> of 4-ary Boolean functions<br> The functions are represented as red squares in a 256×256 matrix organized like a 16-cube Hasse diagram Inkscape-hand a -Boolean Bin2svg own 2012 Mate2code 4-ary Boolean functions; matrix ggbec |