Re: [PATCH v7 5/6] iio: ABI: Add partial quaternion modifier

[Andy Shevchenko]

On Wed, Mar 04, 2026 at 04:35:39PM -0600, David Lechner wrote:
> On 3/4/26 2:07 AM, Francesco Lavra wrote:

...

> > +		- the quaternion vector is normalized, i.e. x^2 + y^2 + z^2 + w^2 = 1
> 
> Isn't this usually written with w first?
> 
> > +		- the rotation angle is within the [-180, 180] range, i.e. the w
> 
> Best to say the angle units. IIO standard unit for angle is radians.
> 
> > +		  component (which represents the amount of rotation) is non-negative

Based on these, maybe the name should be

  normalised_360_quaternion

(or variations of this)? Actually "partial" quaternion some articles use
for something different as far as I can say.

-- 
With Best Regards,
Andy Shevchenko