[A89] Re: That 3d graph
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[A89] Re: That 3d graph
Someone posted this with a program to show the animation to me once.
It's on Techno-Plaza in the cool graphs section for 3D graphs.
http://www.technoplaza.net/graphs
cos( sqrt (x^2 + y^2) - 0.04 * =F0) / sqrt (x^2 + y^2)
The (cosine of the difference of the square root of sum of x squared and
y squared and 0.04 times =F0) divided by the square root of the sum of x
squared and y squared.
There are several graph settings to make it look right, too...
eye-theta =3D 45
eye-phi =3D 46.02
eye-psi =3D 0
xmin =3D -3 * pi
max =3D 3 * pi
ymin =3D -3 * pi
ymax =3D 3 * pi
zmin =3D -0.5
zmax =3D 1.0
xgrid =3D 17
ygrid =3D 17
ncontour =3D 5
Is this what you are looking for?
John David Ratliff
jdratlif@cs.indiana.edu
-----Original Message-----
From: assembly-89-bounce@lists.ticalc.org
[mailto:assembly-89-bounce@lists.ticalc.org] On Behalf Of jon p kotta
Sent: Tuesday, May 07, 2002 2:41 PM
To: assembly-89@lists.ticalc.org
Subject: [A89] Re: That 3d graph
On Mon, 6 May 2002 03:56:37 EDT Airswit@aol.com writes:
> i think it is something like 20*cos((x^2+y^2)/pi)/(x^2+y^2+pi) or=20
> something=20
> like that
I really don't think it's cosine. cos(x)/x blows up as x goes to zero.
jk
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