## Equation of a cylinder in 3 dimensional space.

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### Equation of a cylinder in 3 dimensional space.

Hi Friends,

Please, I like to know the equation of a cylinder with a given radius, r and a given height, h in 3 dimensional space(x,y,z).

We need this in other to verify whether a given point, say (1,2,3) is in the cylinder or not.

Thanks.
edunwaigwe@yahoo.com
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Posts: 2
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### Re: Equation of a cylinder in 3 dimensional space.

$x^2+y^2=r^2$ where r is a number and it is the radius of the cylinder.

ZardoZ
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Posts: 1664
Joined: Mon Nov 08, 2010 5:17 am
Location: Greece, Thessaloniki

### Re: Equation of a cylinder in 3 dimensional space.

in that equation there is no height included so it has to be over an interval for z

gelatine1