Math Is Fun Forum
  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

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#26 2006-01-01 11:18:03

krassi_holmz
Real Member
Registered: 2005-12-02
Posts: 1,908

Re: Help with 3D rotation

Simplified area:

View Image: AREA.GIF

Last edited by krassi_holmz (2006-01-01 11:18:27)


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#27 2006-01-01 12:29:00

krassi_holmz
Real Member
Registered: 2005-12-02
Posts: 1,908

Re: Help with 3D rotation

Please correct me if i've done a muistake.


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#28 2006-01-01 12:41:46

God
Member
Registered: 2005-08-25
Posts: 59

Re: Help with 3D rotation

The work seems right, so if you made a mistake, I haven't noticed it. Thanks

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#29 2006-01-01 17:55:47

John E. Franklin
Member
Registered: 2005-08-29
Posts: 3,552

Re: Help with 3D rotation

In all the light green graphs of previous posts, the point (e,0) is wrong, it is (e, -1) like in krassi's hand drawing before he raised it by 1.
Also here is some more information in a new plot showing three regions to be rotated, the hardest one being the skinny area I have labelled region C.

View Image: mathisfun21.jpg

igloo myrtilles fourmis

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#30 2006-01-01 20:48:32

krassi_holmz
Real Member
Registered: 2005-12-02
Posts: 1,908

Re: Help with 3D rotation

Oh, yes, we want to know the volume.


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#31 2006-01-01 20:49:47

krassi_holmz
Real Member
Registered: 2005-12-02
Posts: 1,908

Re: Help with 3D rotation

But the AREA is true.


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