Identifying Surfaces in Spherical Coordinates

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Homework Help Overview

The discussion revolves around identifying surfaces in spherical coordinates, specifically the equation ρ = sin(θ) * sin(φ). Participants are exploring the relationship between spherical and Cartesian coordinates.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Some participants attempt to convert the spherical equation to Cartesian coordinates but express difficulty in achieving a workable form. Questions arise about the necessary equations for conversion and the implications of the spherical representation.

Discussion Status

Participants are actively engaging with the problem, sharing their attempts and seeking clarification on the conversion process. There is a recognition of the need for additional equations that relate spherical to rectangular coordinates, indicating a productive exploration of the topic.

Contextual Notes

There is mention of known outcomes related to the problem, such as the expected sphere characteristics, but these are not being resolved within the discussion. Participants are focused on the conversion process and the underlying assumptions of the spherical coordinates.

josh28
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Homework Statement


\rho = sin\theta * sin\phi


Homework Equations


I know that \rho^{2} = x^{2} + y^{2}+z^{2}


The Attempt at a Solution


I tried converting it to cartesian coordinates but I can't seem to get a workable answer that way. I know that the answer is the sphere with radius 1/2 and center (0,1/2,0) but I have no idea how to get there.

Thank you!
 
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josh28 said:

Homework Statement


\rho = sin\theta * sin\phi


Homework Equations


I know that \rho^{2} = x^{2} + y^{2}+z^{2}
What are the other equations that relate spherical to rectangular coordinates?
josh28 said:

The Attempt at a Solution


I tried converting it to cartesian coordinates but I can't seem to get a workable answer that way. I know that the answer is the sphere with radius 1/2 and center (0,1/2,0) but I have no idea how to get there.

Multiply each side of this equation by rho.
\rho = sin\theta * sin\phi

After that, use the conversion equations to convert everything to rectangular coordinates.
 
Thank you!
 

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