Triple integral, 2 parabolic cylinders

In summary, the conversation discusses finding the volume of a region bounded by two parabolic cylinders and the plane z=0. The setup involves solving for the intersection of the cylinders, setting up the integral, and using LaTex for better formatting. The final setup is confirmed to be correct.
  • #1
EV33
196
0

Homework Statement


Find the volume of the region which is bounded by the parabolic cylinders y=x², x=y² and z=x+y and z=0



Homework Equations





The Attempt at a Solution



I solved x=y² for y, and set that equal to y=x², and I got the intersection of the two parabolic cylinders to be at x=1. So I set it up as follows

∫∫∫ dzdydx R={(x,y,z)l 0<x<1,x²<y<sqrt(x), 0<Z<x+y}

(Preted my < are actually < and equal to signs)

I was wondering if someone could tell me if my set up is correct.

Thank you.
 
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  • #2
Yes, that's exactly right.

By the way, "LaTex" is much nicer. On this board
[ tex ]\int_{z=0}^{x+y}\int_{y=x^2}^{\sqrt{x}}\int_{x= 0}^1 dxdydz [ /tex ]
gives (without the spaces inside [ ])
[tex]\int_{z=0}^{x+y}\int_{y=x^2}^{\sqrt{x}}\int_{x= 0}^1 dxdydz [/tex]

Some other boards use " " or "\( \)" or other things as delimiters but the codes are the same.
 
  • #3
Ok I will try that next time. Thank you so much.
 

FAQ: Triple integral, 2 parabolic cylinders

1. What is a triple integral?

A triple integral is a type of mathematical operation used in calculus to calculate the volume of a three-dimensional shape. It involves integrating a function over a three-dimensional region or volume.

2. What are parabolic cylinders?

Parabolic cylinders are three-dimensional shapes that are formed by intersecting a plane with a parabolic curve. They have a curved base and vertical sides, similar to a soda can or a tunnel.

3. How are triple integrals used to calculate the volume of parabolic cylinders?

To calculate the volume of a parabolic cylinder, the triple integral is used to integrate the cross-sectional area of the cylinder over its entire length. This involves integrating a function that represents the shape of the cross-section along the x, y, and z axes.

4. Can triple integrals be used to find the volume of other three-dimensional shapes?

Yes, triple integrals can be used to find the volume of any three-dimensional shape, as long as the shape can be described by a mathematical function. This includes shapes such as spheres, cones, and more complex shapes.

5. Are there any practical applications of triple integrals and parabolic cylinders?

Yes, triple integrals and parabolic cylinders have many practical applications in fields such as engineering, physics, and computer graphics. They are used to calculate volumes of objects and to model real-world phenomena, such as fluid flow and electric fields.

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