On Thu, Apr 17, 2014 at 3:39 PM, SuperFly Physics wrote:

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]]>I felt very good about today. I think that that was in large part due to the fact that you got me to muddle through the text book and identify gaps in my understanding; I.e where equation 9.2 came from. And instead of fixating on that step, I had to move forward and see what the author did from there. When i watch a screencast, I find that I get lulled into thinking I understand something, but later realize I do not. And too often, I find that I trust the math in the text will work out without really checking what the author is claiming to be true. Your approach did not permit passivity in learning.

I wish our textbook author includes more details, as you do above. I understand the text most either when I am going through it with you in class or with you in your office because our author can be sparse on detail.

]]>Something like: Rx(-theta) Ry(-phi) Rz(-psi)

where Rz is the 3D rotation matrix about the z axis, etc.

Could you send me the mathematica notebook, too?

Thanks