How Do You Evaluate a Double Integral Over a Helicoid Surface?

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Thread starter weckod
Start date Nov 28, 2005
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Calc 3

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weckod

Thread starter
Nov 28, 2005

eval. double integal sprt(1+x^2+y^2)ds

S is helicoid and r(u,v) = ucos(v)i+usin(v)j+vk, with 0 <=u<=4 and 0<=v<=4pi

help please i don't know what a helicoid is!

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Galileo

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Nov 29, 2005

http://mathworld.wolfram.com/Helicoid.html
The shape can also be visualized from the given parametrization. Or you could attemt to draw a picture.

How Do You Evaluate a Double Integral Over a Helicoid Surface?

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How Do You Evaluate a Double Integral Over a Helicoid Surface?

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