Math Is Fun Forum

bossk171

Member

Registered: 2007-07-16

Posts: 305

Wooden 3-D graph

This is something I made, feed back would be great of course.

Shot with KODAK CD33 ZOOM DIGITAL CAMERA at 2007-07-29

Shot with KODAK CD33 ZOOM DIGITAL CAMERA at 2007-07-29

Shot with KODAK CD33 ZOOM DIGITAL CAMERA at 2007-07-29

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There are 10 types of people in the world, those who understand binary, those who don't, and those who can use induction.

bossk171

Member

Registered: 2007-07-16

Posts: 305

Re: Wooden 3-D graph

First I drilled wholes into my base, and created a sort of 2-D plane, then I measured and cut the corresponding dowel and plugged it in. (for example, at the point (3,4) the dowel is 5 units long).

Some stuff I noticed as I was making it:

there are 8 of every length except the lengths that are represented by (2x)^.5 (the diagonals) and x^.5 or y^.5 (the vertical axis and horizontal axis).

An intersecting plane perpendicular to the z axis will create a curve in the form y = a|x| where a is a constant. In the diagonal, a = 2^.5, if the plane is x = 0 or y = 0 then a = 1

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There are 10 types of people in the world, those who understand binary, those who don't, and those who can use induction.

John E. Franklin

Member

Registered: 2005-08-29

Posts: 3,588

Re: Wooden 3-D graph

Totally awesome!! bossk.  Reminds me of a connect four game I made that was hexagonal out of dowels once, and then I used beads and spacers when you play the game.

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igloo myrtilles fourmis

mikau

Member

Registered: 2005-08-22

Posts: 1,504

Re: Wooden 3-D graph

cooool! that would be a cool thing to keep on your lab desk. If you have one.

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A logarithm is just a misspelled algorithm.

mpthomas

Member

Registered: 2007-07-27

Posts: 7

Re: Wooden 3-D graph

Wood you believe that?

bossk171

Member

Registered: 2007-07-16

Posts: 305

Re: Wooden 3-D graph

Thanks for the positive feedback, I've been thinking I'll do a z = x^2 + y^2 (looks sorta like a bowl) next, then maybe z = x*sin(y).

Any other curves that might look cool? (is it still a "curve" if it's in 3-D?)

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There are 10 types of people in the world, those who understand binary, those who don't, and those who can use induction.

krassi_holmz

Real Member

Registered: 2005-12-02

Posts: 1,905

Re: Wooden 3-D graph

Good job!
Very interesting interpretation!

PS: "curve" in 3D is "surface".

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IPBLE:  Increasing Performance By Lowering Expectations.