Joyful             { ; Fractal of the day, 26-12-99
                     ; time=0:06:23.16 on a p200, SF5
  reset=2000 type=formula 
  formulaname=mandelbrotmix4 function=ident passes=1
  center-mag=-0.42590222577768970/+0.26971530247950280\
  /4.440764e+013/1.0001/77.505/-0.034
  params=-1/1.5/1/2.5/0/0 float=y maxiter=1800
  bailout=25 inside=0 logmap=132 symmetry=xaxis
  periodicity=10 mathtolerance=/0.18
  colors=000A2A<3>D5AE6AF7A<2>IAA<4>NUA<3>Si9Um9Vq9Wu9\
  Xy9<3>ZrWZpa_nf_ll_kq<3>TSoRNnPInODn<4>Z9c`8ab7_<3>j\
  5S<3>ZYgWdkTkoQrsNyvSsWWm6<3>i_AmWBpTC<2>zJE<4>yAWy8\
  Zy6b<2>y1ly0ow3l<8>iTQgVNfYL<3>`hB<3>fR`gMgiImjDtk9z\
  <6>b4ga3e_2b<2>X0VW0TX4U<4>ZOWZSX_WX<2>`gZ`kZZi_<7>N\
  XfLVgKTh<3>ENk<3>W`j_djcgjmZcvRX<5>gMXdLXbLX<3>TIX<8\
  >eUFfVDhWB<3>m`4<3>gbKfcOecS<2>adb<4>kiTljS<9>htEhuC\
  hvB<3>gz6<3>QzaLziHzqDzx<7>HzqHzpIzo<3>Jzl<5>_zUbzQe\
  zN<3>pzB<4>dz6bz5`z5<3>Sz1EzHEzG
  }

frm:MandelbrotMix4 {; Jim Muth
a=real(p1), b=imag(p1), d=real(p2), f=imag(p2), g=1/f,
h=1/d, j=1/(f-b), z=(-a*b*g*h)^j, k=real(p3)+1,
l=imag(p3)+100, c=fn1(pixel):
z=k*((a*(z^b))+(d*(z^f)))+c,
|z| < l
}