User talk:11wx

Quaternions and Spatial Rotations
On the Wikipedia page: Quaternions and Spatial Rotations[1], in the section "Using quaternions as rotations", you inserted the comment: { Note that $q$ and $−q$ represent the same rotation, and the mapping from unit quaternions to three-dimensional rotations is two-to-one.}

I think the point you raised is important, and deserved both a proof and a discussion of the geometric reasons for and implications of the two-to-one mapping.

So - I expanded it and moved it below the conjugation equation, since the fact that the conjugation equation is quadratic in $q$, makes it clear that conjugation by $q$ and by $−q$ provide the same transformation.

Macchess (talk) 05:24, 13 December 2022 (UTC)

[1] https://en.wikipedia.org/wiki/Quaternions_and_spatial_rotation Macchess (talk) 05:24, 13 December 2022 (UTC)

"Easing" listed at Redirects for discussion
The redirect [//en.wikipedia.org/w/index.php?title=Easing&redirect=no Easing] has been listed at redirects for discussion to determine whether its use and function meets the redirect guidelines. Anyone, including you, is welcome to comment on this redirect at  until a consensus is reached. Utopes (talk / cont) 00:52, 14 April 2024 (UTC)

"Easing function" listed at Redirects for discussion
The redirect [//en.wikipedia.org/w/index.php?title=Easing_function&redirect=no Easing function] has been listed at redirects for discussion to determine whether its use and function meets the redirect guidelines. Anyone, including you, is welcome to comment on this redirect at  until a consensus is reached. Utopes (talk / cont) 00:53, 14 April 2024 (UTC)