/sci/ - Science & Math » Thread #12953974

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Calculus

Anonymous Sat 10 Apr 08:17:39 2021 No.12953974 View Reply Original Report

Quoted By: >>12953980 >>12954080 >>12954126 >>12954137 >>12954168 >>12954228 >>12954311

Fuck I'm too tired for this. What is the equation of the line that rotates around the z-axis?

Anonymous

Anonymous Sat 10 Apr 2021 08:18:50 No.12953980 Report

Quoted By:

>>12953974
Z axis? Bro that's too advanced for /sci/

Anonymous

Anonymous Sat 10 Apr 2021 08:44:02 No.12954080 Report

Quoted By: >>12954086

>>12953974
If youre talking about the cone as a whole, z=sqrt(x2+y2)

Because you get a radius and make it a hight

Anonymous

Anonymous Sat 10 Apr 2021 08:45:51 No.12954086 Report

Quoted By: >>12954101

>>12954080
*height desu

Anonymous

Anonymous Sat 10 Apr 2021 08:49:29 No.12954101 Report

Quoted By:

>>12954086
Spelling properly isnt for bakas

Anonymous

Anonymous Sat 10 Apr 2021 08:51:02 No.12954108 Report

Quoted By:

thinly

Anonymous

Anonymous Sat 10 Apr 2021 08:51:35 No.12954110 Report

Quoted By:

veiled

Anonymous

Anonymous Sat 10 Apr 2021 08:52:06 No.12954114 Report

Quoted By: >>12954251

homework

Anonymous

Anonymous Sat 10 Apr 2021 08:52:37 No.12954118 Report

Quoted By:

thread

Anonymous

Anonymous Sat 10 Apr 2021 08:53:25 No.12954123 Report

Quoted By:

Wtf

Anonymous

Anonymous Sat 10 Apr 2021 08:53:36 No.12954126 Report

Quoted By:

>>12953974
What have you tried?

Anonymous

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Anonymous Sat 10 Apr 2021 08:55:15 No.12954137 Report

Quoted By:

>>12953974
>Calculus
>Fuck I'm too tired for this. What is the equation of the line that rotates around the z-axis?
This is your quest.
In quests, there are challenges.
Challenges which must be overcome by your tiny, learningly-disabled brain.

Anonymous

Anonymous Sat 10 Apr 2021 09:03:48 No.12954168 Report

Quoted By:

>>12953974
I'll give you a hint
If you're that fuckin retarded, go back to basic algebra instead of calculus

Anonymous

Anonymous Sat 10 Apr 2021 09:23:49 No.12954228 Report

Quoted By: >>12954251 >>12954271

>>12953974

$ f(r,\phi,z) = \begin{pmatrix}1\\\phi\\1\end{pmatrix};~\phi\in[0; 2\pi] $

Anonymous

Anonymous Sat 10 Apr 2021 09:31:01 No.12954251 Report

Quoted By: >>12954271 >>12954277 >>12954314

>>12954228
Beautiful looking equation but that would just be a raised circle wouldnt it

>>12954114
grr

Anonymous

Anonymous Sat 10 Apr 2021 09:35:59 No.12954271 Report

Quoted By: >>12954286

>>12954228
>>12954251

same equation but replace both "1"s with a single variable that goes from 0 to whatever?

Anonymous

Anonymous Sat 10 Apr 2021 09:38:01 No.12954277 Report

Quoted By: >>12954314

>>12954251
yes, if you want to have a point that rotates on the circle then
$ f(r, t) = \begin{pmatrix}r\\t~mod~2\pi\\r\end{pmatrix};~r\in[0;~1];~t,~r\in\mathbb{R} $

Anonymous

Anonymous Sat 10 Apr 2021 09:39:26 No.12954286 Report

Quoted By:

>>12954271
Wouldnt that just fill the whole of space?

Anonymous

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Anonymous Sat 10 Apr 2021 09:47:02 No.12954311 Report

Quoted By:

>>12953974

Anonymous

Anonymous Sat 10 Apr 2021 09:48:47 No.12954314 Report

Quoted By:

>>12954277
>>12954251
or you could use spherical coordinates instead of cylindrical coordinate system
$ f_r(r,\theta,\phi) = r\\ f_\theta(r,\theta,\phi) = \pi/4\\ f_\phi(r,\theta,\phi) = \phi\\ r\in[0;~1];~\phi\in[0;~2\pi] $

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