Understanding Coordinate Transforms: Partial Derivatives

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SUMMARY

This discussion centers on the application of partial derivatives in coordinate transformations, specifically in the context of covariant and contravariant vectors. It clarifies that partial derivatives are not used for the overall transformation but are applicable for local transformations or in the context of integrals involving the Jacobian. The Jacobian matrix plays a crucial role in transforming differential elements in multiple integrals, as highlighted by the integral transformation example provided.

PREREQUISITES
  • Understanding of partial derivatives
  • Familiarity with covariant and contravariant vectors
  • Knowledge of Jacobian matrices
  • Basic calculus, particularly multiple integrals
NEXT STEPS
  • Study the properties and applications of Jacobian matrices in coordinate transformations
  • Learn about covariant and contravariant vector transformations in detail
  • Explore the role of partial derivatives in multivariable calculus
  • Investigate integral transformations using the Jacobian in various coordinate systems
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Students and professionals in mathematics, physics, and engineering who are seeking to deepen their understanding of coordinate transformations and their applications in theoretical frameworks.

Storm Butler
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Hey, I am having trouble understanding how you can transform one set of coordinates into another using partial derivatives i just don't get the whole thought process behind it. I came across this while reading about covariant and contrivariant vectors. If anyone can help clear up how this works i would really appreciate it. Also if i need to be more specific about what i mean or if you would like to see an example of what I am talking about just ask and i would be happy to post it up.
 
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Hi Storm Butler! :wink:
Storm Butler said:
Hey, I am having trouble understanding how you can transform one set of coordinates into another using partial derivatives …

We don't use partial derivatives for the transformation itself, we can only use them for a very local transformation, or for transforming the d part in an integral: ∫∫∫dx dy dz = ∫∫∫ (jacobian) da db dc.

see http://en.wikipedia.org/wiki/Jacobian_matrix_and_determinant" for some details. :smile:
 
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