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0 votes
1 answer
27 views

Prove that the parametric surface of revolution has continuous inverse of its image

Let $\boldsymbol{\sigma}(u,v)=\big(f(v)\cos u, f(v) \sin u, g(v)\big)$, where $U=[(u,v):0<u<2\pi,~v\in I]$ ($I$ open interval of $\mathbb{R}$) be the parametric surface of revolution by rotating ...
Nikolaos Skout's user avatar
1 vote
0 answers
99 views

Spherical volumes via revolution of polynomials

In considering volumes created by revolving polynomials $y=\beta x^n$ about the y-axis, if we specify $\beta$ so that the curve includes $(0,0)$ and $(a,2a)$ and consider the volumes swept within the ...
RobinSparrow's user avatar
  • 2,042
1 vote
2 answers
152 views

Obtaining the Surface Area of a Superegg with a Given Volume

I have been stuck trying to find an expression for the surface area of a superegg of a given volume. Specifically, the shape I'm looking at is the solid of revolution obtained by rotating a squircle (...
ojt's user avatar
  • 75
3 votes
1 answer
258 views

Verifying formulas and process for surface area and volume of a spindle torus

While working on this geometry problem I reasoned that the surface area of the spindle torus is the surface area of the apple (outer surface) plus the surface area of the lemon (inner surface) while ...
John's user avatar
  • 133
3 votes
2 answers
64 views

Is there a way to modify the solid of revolution integral to allow for solids of increasing and decreasing radius?

I am doing a project on tori as they relate to pool floaties and the volume of a normal torus can be calculated by the solids of revolution integral on a circle, Is there a way to modify the integral ...
Lachlan Mc's user avatar
1 vote
1 answer
412 views

Volume of the solid with circular cross section

Each plane perpendicular to the x-axis intersects a certain solid in a circular cross section whose diameter lies in the xy-plane and extends from $x^2 = 4y$ to $y^2 = 4x$. The solid lies between the ...
utkarsh.naman's user avatar
1 vote
0 answers
43 views

Sufficient conditions on the profile curve of a revolution surface to make it of class $C^k$

I will first introduce my notations then ask my questions. Thank you in advance for your answer. Notations: Given a surface of revolution $S_\Gamma$ of profile curve $\Gamma$ of class $C^k$ given by $$...
Cactus's user avatar
  • 98
2 votes
2 answers
670 views

Find the Volume of a Solid Revolution around the y axis

Having trouble with this question from my OpenStax Calculus Volume 1 Homework, It is question 89 of Chapter 6 about Solid Revolution. I put my math below: y=4-x, y=x, x=0 Find the volume when the ...
UT-HJ's user avatar
  • 103
0 votes
0 answers
62 views

What is the volume of the region that is within a distance r outside of the surface of an n-dimensional hypersphere of radius R?

Suppose you have an n-dimensional ball of radius R living within a d-dimensional space. Imagine the region in d-dimensional space consisting of all points that are a distance r outside the surface of ...
Hirundo's user avatar
2 votes
1 answer
275 views

On Surfaces of Revolution With Any Two Relations in $\Bbb R^2$ Such that One is the Axis (g) and the Other Revolves (f) defined by z=Rev[f(x),g(x)]:

For the last few years, I have tried a couple times to solve this problem that I came up with. Even though this may seem like a nonsensical idea, there is still a seed of wonder embedded into it. This ...
Тyma Gaidash's user avatar
0 votes
1 answer
31 views

Recurrence relation for the volume of a series of truncated cones

I'm struggling to find the recurrence relation to evaluate the volume of a solid formed by a series of truncated cones one on top of the other. The image below illustrates the problem for 2 truncated ...
Mateus Forcelini's user avatar
0 votes
1 answer
75 views

Geometric meaning of surface revolution

It's known that the volume of revolution of the function $f(x)$ (assuming it's real, continuous...) is $$V=\pi\int_a^b f(x)^2dx$$ This can be modelized as if we add together all the infinitesimal ...
MatMorPau22's user avatar
0 votes
1 answer
32 views

Help with a revolution solid

Suppose I have an area in the cartesian system formed by the $y$ axis and a given function $y=f(x)$. How do I evaluate the volume of the solid formed by completely revolving this area around the $y$ ...
Mateus Forcelini's user avatar
0 votes
2 answers
2k views

How to get the parametric equation of a rotated cylinder (with certain slope)

I have a basic question but I have failed in solving it. I have the equation of a cylinder which is $y^2 + z^2 = r^2$ (centered in the x-axis). The parametric equation (dependent on $L$ and $s$) is $(...
Paquillo's user avatar
2 votes
1 answer
143 views

Volume of Revolution but with higher dimensions?

I've learned in my calculus class how a function can be rotated around an axis to create a 3 dimensional shape, and the specific formulae associated with this process. What I'm wondering is whether or ...
Lykos3D's user avatar
  • 21

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