Re: [sage-support] plot color computet by function

2012-08-24 Thread David Joyner
On Wed, Aug 22, 2012 at 12:15 PM, danjo86 dan...@sommerfeld-timmaspe.de wrote:
 Hey,

  i need some help. I try to definde the mandelbrotset with colors defined by 
 following function:

 sage: def mandel(x,y):
   v=[];c=x+y*i;z=c;v.append(z)
   for m in range(30):
   if abs(z)2:
   z=z^2+c;v.append(z);color=exp(-m)
   return color


I don't know the answer to your question but I don't see the purpose of
v.append(z);. Maybe it is a formatting issue that was lost in the email,
but it seems to play no role in your function. Or am I missing something?



 Then i typed: plot3d(0,(x,-2,2),(y,-2,2),rgbcolor=hue(mandel))

 Now i get TypeError?
 May anyone has an idea?

 Thanks for help
 Danjo

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[sage-support] plot color computet by function

2012-08-22 Thread danjo86
Hey,

 i need some help. I try to definde the mandelbrotset with colors defined by 
following function: 

sage: def mandel(x,y):
  v=[];c=x+y*i;z=c;v.append(z)
  for m in range(30):
  if abs(z)2:
  z=z^2+c;v.append(z);color=exp(-m)
  return color

Then i typed: plot3d(0,(x,-2,2),(y,-2,2),rgbcolor=hue(mandel))

Now i get TypeError?
May anyone has an idea?

Thanks for help
Danjo

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