[SciPy-Dev] GSoC 2018 : Rotation formalism

[Pierre de Buyl]

On Tue, Feb 27, 2018 at 10:06:56PM +0000, Matthew Brett wrote:
> Also : http://matthew-brett.github.io/transforms3d/
> 
> This is mostly Christoph Gohlke's code, but I've been the maintainer
> for a while:
> 
> * rotation matrices
> * quaternions

In the case of quaternions, there are two typical storages: [w, x, y, z] (scalar
first) or [x, y, z, w] (scalar last). Is there a "standard" here?

Regards,

Pierre