Half-Half-shells { ; FOTD -- December 05, 2001 (Rating 8)
 ; time=0:31:25.81--SF5 on a p200
  reset=2002 type=formula 
  formulaname=MandelbrotMix4 function=recip passes=1
  center-mag=-2.53776950877348200/-0.014009024142595\
  28/12424.62/1/-67.5/-8.6408921684544282e-011
  params=1.636/-0.401/0.547/1.337/0/0 float=y
  maxiter=30000 inside=0 logmap=269
  colors=000POfPOfQPgRQhSRiTSjUTkVUlWVmXWnYXoZYp_Zq`\
  _ra`scatebugcvidwkexlfyngzoizpkzrnztoztpzoozkozgnv\
  cnp_llXlfSkaPkYQiXSiXSiXTiXTiVViVXiVXiVYiVYiT_iT`i\
  T`iTaiTagScgScgSdgSfgSfgQggQggQigQkgQkgPlgPlgPngPn\
  gPpgPrfHtf7wg4xg4wi3wi3wk3wk3vl1vn1vn1to0to0tp0tp0\
  rr0rt0rt0pv0pv0pw0pw0ox0oz0oz0nz0nz0nz0oz0nz0nz0nw\
  0nt0np0nn0nk1ng3nd3na4n_6lX7iT7gQ9fNAdKCcHCaED`CE_\
  9GY6GX3HV0JT0KS0KQEJPKKNSKSTMXVM_XMcYNg_Nl`PoaPtcP\
  xdQzfQzgQzfPzdPzdPzcNzcNzaNxaMx`Mw`Mw_KvYKvYKtXJrX\
  JrVJpVHpTHoTHnSGnSGlQGlPEkPEkNEiNDgMDgMDfKCfKCdJCf\
  HCdJCcJCaKC`KC_MCYMCYMCXNCVNCTPCSPCQQCPQCPQCNSDMSG\
  PTJSTMVVPYVS`VVcXYfX`iYclYfo_ir_lv_ov`rv`vvaxvazvc\
  zvczvczvdzvdzvfzvfzvfzvfzvfzvfzvfzvfzvfzvfzvfzvfzv\
  fzwfzxfzzfzzfzzfzzfzzfzzfzzfzzfzzfzzfzzfzzfzzfzzfz\
  zfzzfzzfzzfzzfzzfzzfzzfzzfzzfzzfzzfzzfzzfzzfzzfzzf\
  zzfzzfzzfzzfzzfzzfzzfzzfz

}

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
}