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lmann2
Posts: 156
Posted 12:39 May 11, 2015 |

Does anyone have any ideas on how to derive R(β) on page 222 of the text (this relates to Example 5.3.4) there's no one I can memorize this for a test.

 

skim144
Posts: 63
Posted 17:13 May 11, 2015 |

To me, this equation (along with the figure 5.25) doesn't really make sense.

It looks like theta and phi have to be switched? Correct me if I'm wrong.

I would rather go with Prof. Kang's idea in the lecture. You simply just have to rotate it twice to match r with z axis first.

 

1. rotate about x axis until r is in between z and x.

2. rotate about y axis until r is in sync with z.

Last edited by skim144 at 17:15 May 11, 2015.
lmann2
Posts: 156
Posted 17:15 May 11, 2015 |

Do you remember what lecture that was in?  

skim144
Posts: 63
Posted 17:17 May 11, 2015 |

Lecture Video for 4/30 (recorded on 4/28)

 

topic starts around 30 minutes