1. Enabling quaternion derivatives: the generalized HR calculus. Issue 8 (August 2015) Authors: Xu, Dongpo; Jahanchahi, Cyrus; Took, Clive C.; Mandic, Danilo P. Journal: Royal Society open science Issue: Volume 2:Issue 8(2015) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗