Carroll diagram Carroll diagram A Carroll diagram, Lewis Carroll's square, biliteral diagram or a "two-way table" is a diagram used for grouping things in a yes/no fashion. Numbers or objects are either categorised as 'x' (having an attribute x) or 'not x' (not having an attribute 'x'). They are named after Lewis Carroll, the pseudonym of Charles Lutwidge Dodgson. Although Carroll diagrams can be as simple as the first one above, the most well known types are those similar to the second one, where two attributes are shown. The <nowiki>'</nowiki>universe<nowiki>'</nowiki> of a Carroll diagram is contained within the boxes in the diagram,
Neil Dodgson Neil Dodgson Neil Anthony Dodgson is Professor of Computer Graphics at the Victoria University of Wellington. He was previously (until 2016) Professor of Graphics and Imaging in the Computer Laboratory at the University of Cambridge in England, where he worked in the "Rainbow Group" on computer graphics and interaction. Dodgson graduated with a Bachelor of Science degree in Computer Science and Physics from Massey University in 1988 and subsequently worked there as a Junior Lecturer in Computer Science for one year. He was awarded a Cambridge Commonwealth Trust Prince of Wales Scholarship to study at the University of Cambridge, where