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Re: Rotation Transformation

Quote:

Originally Posted by

**bugatti79** Folks,

I am struggling to understand how the attached expressions were obtained for the simple rotation of 2 axes normal to each other by an angle

This is different to what is shown the wiki link

Rotation matrix - Wikipedia, the free encyclopedia (See in 'two dimensions')

Ie,

and

Any clues?

Regards

bugatti

Here is a picture

Attachment 25252

Note that

and

So the general transformation is

Now for any arbitary x and y you get

Re: Rotation Transformation

Thank you sir, just what I was looking for.

Regards

Re: Rotation Transformation

I wrote this out for someone last month, if you want to take a look:

http://mathhelpforum.com/advanced-al...tml#post736870