Talk:Cylinder (geometry)

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Mathematics rating:	Start Class	Mid Priority	Field: Geometry
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Please update this rating as the article progresses, or if the rating is inaccurate. Click to show/hide comments. Please add to or update the comments to suggest improvements to the article. Geometry guy 18:36, 21 May 2007 (UTC)

Contents 1 strength 2 Is this the geometric cylinder? 3 Surface area and volume of part of a sphere 4 Ratchets with cylindrically notched teeth 5 where is z?

[edit] strength

hello, i was wondering how strong a cylinder can be? if possible contact meon mye-mail adress

thank you

Its not a good idea to put your email up here, so I removed it. 68.6.112.70 18:26, 10 May 2006 (UTC)

If you want us to contact you, allow email from other Wikipedians and sign your posts like this- ~~~~. Lunakeet 12:12, 9 May 2008 (UTC)

[edit] Is this the geometric cylinder?

Correct me if I'm wrong, but this doesn't seem to talk much about the cylinder as a solid; instead it seems to look mostly at the cylinder as a Cartesian equation, which is more mathematical than anything else (or at least to me). Does anyone else agree? --JB Adder | Talk 01:06, August 4, 2005 (UTC)

I agree, this page isn't very complete. You can help! 68.6.112.70 18:26, 10 May 2006 (UTC)

This one may not cylinder in geometry commons, this is only cylinder (quadric). How about the extended concept? Newone 06:32, 16 September 2007 (UTC)

[edit] Surface area and volume of part of a sphere

I would be interested in seeing the integrals needed to find the surface area and volume of part of a sphere. This should come out of a derivation for the integrals needed to find the surface area and volume of part of a sphere. 68.6.112.70 18:26, 10 May 2006 (UTC)

[edit] Ratchets with cylindrically notched teeth

I was hoping to find some information on the mechanical properties of ratchets with 'sawtooth' notched teeth as opposed to those having sinusoidal notches (like those that a series of cylinders would fit into).

[edit] where is z?

In the formula provided, , where is the information about the height of the zylinder "hidden" (that is, where is the z-axis)? Generally, the article Cartesian equation misses to explain how to understand these equations. --Abdull 07:52, 29 May 2006 (UTC)

• It means that z can be anything. The equation describes the surface of an infinitely long cylinder around the z-axis CuriousOliver 19:50, 17 July 2006 (UTC)