Mandelbrot图像

using System;
using System.Collections.Generic;
using
System.Text;

namespace ConsoleApplication3
{
    class
Program
   
{
        static void Main(string[]
args)
       
{
           
double realcoord,
imagcoord;
           
double realtemp, imagtemp, realtemp2,
arg;
           
int
iterations;
           
for (imagcoord = 1.2; imagcoord >= -1.2; imagcoord -=
0.05)
           
{
               
for (realcoord = -0.6; realcoord <= 1.77; realcoord +=
0.03)
               
{
                   
iterations =
0;
                   
realtemp =
realcoord;
                   
imagtemp =
imagcoord;
                   
arg = (realcoord * realcoord) + (imagcoord *
imagcoord);
                   
while ((arg < 4) && (iterations <
40))
                   
{
                       
realtemp2 = (realtemp * realtemp) - (imagtemp * imagtemp) -
realcoord;
                       
imagtemp = (2 * realtemp * imagtemp) -
imagcoord;
                       
realtemp =
realtemp2;
                       
arg = (imagtemp * imagtemp) + (realtemp *
realtemp);
                       
iterations +=
1;
                   
}
                   
switch (iterations %
4)
                   
{
                       
case
0:
                           
Console.Write(".");
                           
break;
                       
case
1:
                           
Console.Write("o");
                           
break;
                       
case
2:
                           
Console.Write("O");
                           
break;
                       
case
3:
                           
Console.Write("@");
                           
break;
                   
}
               
}
               
Console.Write("\n");
           
}
           
Console.ReadKey();

}
    }
}