Treadmill          { ; Fractal of the day, 06-11-99
                     ; time=0:18:07.13 on a p233, SF5
  reset=2000 type=formula 
  formulaname=MandelbrotMix4 function=ident passes=1
  center-mag=-3018.69226998787200000/+0.28588404911868\
  540/3.826502e+008/1/80/-0.001
  params=10/0.03/10/-0.03/150/0 float=y
  maxiter=32000 bailout=25 inside=bof60 logmap=116
  symmetry=xaxis periodicity=10
  colors=000U3c<4>U3c<3>U3czI_<3>nAKk9Hh7D<2>_22<3>O87\
  LA8JBAIDBEDCEEDEEEEHGEJH<2>ENKJPNOTPSZS<3>ilanpcrse<\
  7>pc_pa_o_Z<3>oTX<3>_ieWmgSqiOukLym<8>OakP_kPXk<3>QN\
  k<4>NQlNRmMRm<3>KUn<3>HWz<3>FYzEZzE_y<3>BauBatCcsHcr\
  CdqDep<3>EnmEplFrl<3>GwiGxhHygHzfz3O<3>zFS<4>kcX<3>Z\
  k_Wm`Toa<3>HweHwf8wz<2>AwzAwwBwtBwp<3>DweDwbEwb<3>Gw\
  dGweHweHwf6wv<21>FwiFwiGwh<3>HwfQww<22>JwiIwiIwh<3>H\
  wfywe<20>gwfgwffwf<3>bwfYwaYwbYwc
  }

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
}