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-   -   New angle makes trigonometry rational (http://www.clubconspiracy.com/forum/showthread.php?t=1278)

 igwt 09-18-2005 11:23 PM

New angle makes trigonometry rational

Anyone recognize the sign?

 Shannow 09-19-2005 03:16 AM

Re: New angle makes trigonometry rational

Quote:
 The spread between two lines is a number between zero (representing parallel lines) and one (representing lines at right angles).
Sounds like Trig to me.

I'm working increasingly with graduate engineers from UNSW (btw, I went there, and spent a wonderful year annoying the ODdies)...it's very depressing to see the skills that they are leaving with.

 Shannow 09-19-2005 04:27 PM

Re: New angle makes trigonometry rational

Sounds really like trig to me now

http://web.maths.unsw.edu.au.nyud.net:8090/~norman/papers/Chapter1.pdf

 freeman 09-19-2005 04:42 PM

Re: New angle makes trigonometry rational

I'm no math whiz, but it just seems like a "recalibration" to me -- another way of doing the same thing.

 Shannow 09-20-2005 04:03 AM

Re: New angle makes trigonometry rational

freeman,
he uses pythagorus' theorem, but leaves out the square root (i.e. a calculation), and leaves the numbers as a squared.

Then instead of angles, uses the ratios of opposites (or adjacents) divided by the hypotenuse to define how far apart they are.

He's using trig, just using different terminology, and justifying it by simplicity.

Most engineers and mathematicians would work his way anyway, solving a formula at the end, rather than approximating (through a calculation) each step.

Anyway, the mason's used a compass to work out 30, 45, 60, and 90 degrees (they were so proud to teach us that in Grade 4), and as to

Quote:
 If the lines are close to being parallel, the angle is close to zero, while if the lines are perpendicular, the angle turns out to be, after a highly non-trivial calculation going back to Archimedes, a number with the approximate value 1. 570 796 326 . . . .
1.57076326x2 = 3.141592652...errm pi, back to the circular reference he started against.

 freeman 09-20-2005 05:41 AM

Re: New angle makes trigonometry rational

That's what I'm seeing too,Shannow.
...so what makes this "revolutionary"? :-?

 Saturnino 09-20-2005 11:49 AM

Re: New angle makes trigonometry rational

Quote:
 igwt wrote: Anyone recognize the sign? ABC Link
OOOps !!! I do. In Brazil, this is the signal for the female genitalia. Don't do it around here !

 igwt 09-21-2005 01:20 AM

Re: New angle makes trigonometry rational

Quote:

Saturnino wrote:
Quote:
 igwt wrote: Anyone recognize the sign? ABC Link
OOOps !!! I do. In Brazil, this is the signal for the female genitalia. Don't do it around here !
Aside from the trig aspect the photo show a known signal.

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