Timeline for Cylindrical coordinate $\theta$ when $r=0$
Current License: CC BY-SA 4.0
9 events
| when toggle format | what | by | license | comment | |
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| May 24, 2018 at 8:27 | history | edited | Nat | CC BY-SA 4.0 |
deleted 26 characters in body; edited title
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| May 24, 2018 at 7:11 | answer | added | JamalS | timeline score: 1 | |
| May 23, 2018 at 18:29 | comment | added | user93237 | I think that you may be somehow confusing this situation with the idea of a position vector described in $(r,\theta)$ coordinates. In that case, if r=0, then the position vector is equal to zero regardless of the value of $\theta$. | |
| May 23, 2018 at 18:27 | answer | added | curio | timeline score: 1 | |
| May 23, 2018 at 18:16 | comment | added | garyp | No, the $\theta$ component is $U_\theta (r)$. It's a number that depends on $r$, and $r$ has a well defined value at every point in space. Remember: nowhere is it said that $r$ is constrained to be zero. | |
| May 23, 2018 at 18:14 | comment | added | Robbe Motmans | I understand, but if the $r$ component is zero, doesn't this mean that the $\theta$ component is zero? | |
| May 23, 2018 at 18:09 | comment | added | garyp | This vector field does not say that $r$ is always zero. It says that the $r$ component of every vector in the field is zero. | |
| May 23, 2018 at 18:01 | review | First posts | |||
| May 23, 2018 at 20:33 | |||||
| May 23, 2018 at 17:59 | history | asked | Robbe Motmans | CC BY-SA 4.0 |