Boogie-woogie      { ; Fractal of the day, 09-07-99
                     ; 0:01:27.44 on a p233, 640x480
  reset=1960 type=formula 
  formulaname=MandelbrotMix4 function=recip passes=1
  center-mag=+0.04143557140397893/-0.19552553476653\
  730/5.602156e+009/1/-55
  params=1.414/0.7071/-1.618/-2.718/-2.4/0 float=y
  maxiter=600 bailout=25 inside=0 logmap=23
  symmetry=none periodicity=10
  colors=000inBck3<2>MY6HT7BN85H90F9<3>93HB0IG5P<4>\
  cRrgVxjZt<5>vtX<6>aL6eCLh3Z<7>XVabWZgXWWnN<5>EUM\
  <6>KV8KV7J`8If9HkA<5>8xd<2>_aq<6>hoT<2>KYf<4>ed\
  yZWaTOF<6>Dj9<5>hEC<6>0gTApY<7>dpW<3>Rp`WpQ`pGZpO\
  YqV<2>pqt<6>SrUPrRNrQ<4>GsO<3>psS<4>StV<3>Otp<2>E\
  uc_uF<3>su9suK<6>qvQOv3<6>AwLZwXwxh<7>Xyf<7>zz\
  Kuzcpzv<3>7zy<4>Xzlazjezh<5>zzYszLlz8<3>Gz9<5>GzA\
  VzCizD<5>6zM<2>Tz9<7>JzeIzfHzfWzMbzSpzK
  }

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
}