:ά֮Mandelbrot

ʽ:
[R,x,y]=FractalMandelbrot2(f,x0,x1,y0,y1,m,n,Sum,Old)
[R,x,y]=FractalMandelbrot2(f,x0,x1,y0,y1,m,n,Sum)
[R,x,y]=FractalMandelbrot2(f,x0,x1,y0,y1,m,n)
[R,x,y]=FractalMandelbrot2(f,x0,x1,y0,y1,m)
[R,x,y]=FractalMandelbrot2(f,x0,x1,y0)
[R,x,y]=FractalMandelbrot2(f,x0,x1)
[R,x,y]=FractalMandelbrot2(f,x0)
[R,x,y]=FractalMandelbrot2(f)

f:ַĺʽ,ıΪx
x0:ʼֵ,ĬΪ-1.5
x1:ֵ,ĬΪ1.5
y0:ʼֵ,Ĭx0һ
y1:ֵ,Ĭx1һ
m:,Ĭ400
n:,Ĭmһ
Sum:,ĬΪ4
Old:ʾԭ,˱Ϊһ1*2ľ.ֱ𴢴ԭĺ,ĬϺԭΪ0

R:m*nľ,ʾյֵ,зصR=x^2+y^2
x:m*nľ,ʾոƽֵ
y:m*nľ,ʾոƽֵ

ԭ:
Old=[x_0,y_0]ÿһx,yµ
    z.real = x
    z.imag = y
    k = 1
    ʱ( k<Sum  )µ
    {
       z = f(z)
       k = k+1
    }
    R =z.real^2+z.imag^2
    x = z.real
    y = z.imag

ע:{FractalMandelbrot<\FractalMandelbrot>}ͬǱصĵһǵ

:

f="x^2+0.123-0.23*i";
[z,x,y]=FractalMandelbrot2(f,-1.5,1.5,-1.5,1.5,400,400,4);
{PlotPoint2D<\PlotPoint2D>}(x,y)

//ִ3ɵõµķͼ

{<http://img0.ph.126.net/ZFUzfgnla8vzfHLqqKK3PQ==/6631288767535848696.png>}