Pavel Stehule wrote: > rotate ~ sounds like transpose matrix, what is not true in this case.
The various definitions that I can see, such as http://dictionary.reference.com/browse/rotate make no mention of matrices. It applies to anything that moves around a pivot or axis. OTOH, the established term for the matrix operation you're referring to appears to be "transpose", as you mention. https://en.wikipedia.org/wiki/Transpose I notice that according to http://www.thesaurus.com/browse/transpose "rotate" is not present in the 25+ synonyms they suggest for "transpose". In the above wikipedia article about matrix transposition, "rotate" is also never used anywhere. "rotate matrix" does not exist for google ngrams, whereas "transpose matrix" does. https://books.google.com/ngrams Overall I don't see the evidence that "rotate" alone would suggest transposing a matrix. Now it appears that there is a concept in linear algebra named "rotation matrix", defined as: https://en.wikipedia.org/wiki/Rotation_matrix that seems quite relevant for 3D software. But as psql is not a tool for linear algebra or 3D in the first place, who could realistically be deceived? Best regards, -- Daniel Vérité PostgreSQL-powered mailer: http://www.manitou-mail.org Twitter: @DanielVerite -- Sent via pgsql-hackers mailing list (firstname.lastname@example.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers