PSN-L Email List Message

Subject: Pendulum Program : Equilateral : given height : find one side and free period
From: "Geoffrey" gmvoeth@...........
Date: Tue, 3 Aug 2010 02:01:27 -0700


Hello PSN Folks;

I just wrote another silly program and ask you to try it out

It is a number cruncher and is silly because
it does with iteration what a single formula
might figure out.

I'm really just experimenting here to learn a bit.

If only I could figure out that POLES ZERO stuff?
IS that Rectangular or Polar in nature ?

Like rectangular is (X,Y)
Like polar is (Mag,Angle)
Imaginary numbers relate to square root of negative 2 ??

Like what do they mean by Poles and Zeros ?

I read on the internet but just cant grasp the ideas.
I am aware someone who really knows this might say
it is something else I already know ??
It talks about a perfect integrator
It shows a typical four quadrant graph
It mentions Stability/Instability concepts
But I never saw such stuff before even up to
college calculus which I never completed cause
I was too old to physically deal with nasty young peoples
(military like males)  ROTC???? Criminals at colleges ???
attending ASU seemingly bent on making me suffer.

RIGHT CLICK and "save to target as"

IF YOU DARE ?

Description:
BOTH BAS source and exe EXECUTABLE files are included for 32 bit windows.
It pops up windows to input a number
and creates a log file of the same name to
show/save the results.
If you cancel or press the x it will exit without doing more.
If a previous log file exists it will kill/delete the log file
before writing a new one.
It stays within whatever folder you put it.


AS A simple ZIP file:
http://gmvoeth.home.mchsi.com/downloads/TRIANGLE.ZIP



AS A self extracting ZIP file ( does not need the zip program to extract)
http://gmvoeth.home.mchsi.com/downloads/TRIANGLE.EXE

It is my understanding you fix the triangle to the mass so the
wires or whatever point directly at the moment of mass.
You may need a bar on the mass to do this.
Sort of like a swing set only the chair piece is on your
shoulders instead of your butt.

Then of you use damping, that too must operate
on the moment of mass.

The moment of mass being the exact center
which the mass will spin about if hovering
in the air or floating in space.
Kinda hard to find in reality, I guess.

Comments welcome.

Do withem what you please but its at your own risk.

Best Regards,
geoff

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