Maths - Conversion Axis-Angle to Euler - correction from forum

By: nobody ( Nobody/Anonymous )
file error in Axis-Angle to Euler  
2003-07-01 01:35

You have:
qx*qz = x * z * sin^2(angle/2) = x * z * (1 - cos (angle))

I think that it should be:
qx*qz = x * z * sin^2(angle/2) = x * z * (.5 - .5*cos (angle*2))

That error was propigated down to the simplified version of attitude.

But thank you very much for putting up all your work, your pages have saved me a lot of time!

By: martinbaker ( Martin Baker )
file RE: error in Axis-Angle to Euler  
2003-07-01 21:08

Thank you very much for this correction.

I am especially grateful because it seems to have simplified the final equations!
I have updated the web page.


metadata block
see also:


Correspondence about this page

Book Shop - Further reading.

Where I can, I have put links to Amazon for books that are relevant to the subject, click on the appropriate country flag to get more details of the book or to buy it from them.

cover Game Design for Teens.

This site may have errors. Don't use for critical systems.

Copyright (c) 1998-2023 Martin John Baker - All rights reserved - privacy policy.