This updated version of Animation Maths is an accessible and practical guide to animation programming. It opens with arithmetic, solving systems and trigonometry fundamentals, then guides the reader through standard topics such as real functions, the relevant golden section, coordinate systems and vectors. All the subsequent topics are programming oriented and calculus-free and have been selected to add efficiency to your games and animations. In addition to programmable kinematics, Animation Maths offers collision detection, the parametric equations of lines and planes in 3D, and matrices, which are covered in great detail. On its extension to complex numbers, Animation Maths shows the abilities of quaternions as superior 3D rotators.

One person’s deadly sin is another person’s latest go-to piece. Whether it’s carrot pants, shoulder pads, or leopard print, the fact is that, when it comes to fashion, (almost) everything reappears eventually. But why do past trends return, and is there a way to predict when a piece will be back in style again?

Déjà vu Style is all about these special pieces, featuring the celebrities who made them popular while explaining their comeback. From the miniskirts of the 1960s to the platform shoes of the 1990s and more, this entertaining book on fashion brings them all together.

Fashion historians and experts in vintage fashion provide fascinating background knowledge. Sustainability plays a role here, too, because nothing combats the phenomenon of fast fashion better than wearing rediscovered fashion gems.

Text in English and German.