Coordinate transformation under rotation

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Discussion Overview

The discussion centers on the mathematical derivation of coordinate transformations under rotation, specifically around the Z-axis. Participants are exploring the formulation of these transformations and the associated rotation matrices.

Discussion Character

  • Technical explanation, Mathematical reasoning, Homework-related

Main Points Raised

  • One participant presents the transformation equations for coordinates after a rotation around the Z-axis, questioning how they are derived.
  • Another participant suggests examining the rotation of basis vectors to understand the transformation.
  • A participant expresses confusion and requests a detailed mathematical derivation of the transformation equations.
  • Reference to rotation matrices is provided as a potential resource for understanding the transformations.
  • Further inquiry is made about how to derive the rotation matrix itself.
  • Another participant shares a link to a resource on rotation representation, possibly to aid in understanding the topic.

Areas of Agreement / Disagreement

Participants do not appear to reach a consensus on the derivation process, with some seeking clarification while others provide references and suggestions. The discussion remains unresolved regarding the specific derivation of the rotation matrix.

Contextual Notes

Limitations include the lack of detailed mathematical steps in the transformation derivation and dependence on external resources for clarification.

mkbh_10
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If a system is rotated around Z axis then the new coordinates are X'= xcos() - Y sin(),

Y'= Xsin() + Ycos()

Z'= Z

How is this obtained ??

() --->theta , angle of rotation around Z axis .
 
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Simply look at rotating the basis vectors through an angle theta about the z-axis.
 
i am nt getting it , need to know the mathematical derivation
 
how to get that rotation matrix ??
 

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