Butterfly_Antennae { ; Fractal of the day, 26-05-99
                     ; 0:02:42.91 on p233, 640x480
  reset=1960 type=formula 
  formulaname=MandelbrotMix4 function=ident passes=1
  center-mag=-1.316577768613594/-0.0752336203142774\
  /3.535227e+009/1/15 params=25/0.25/0.25/25/-0.9/0
  float=y maxiter=1500 bailout=25 inside=0 logmap=41
  symmetry=none periodicity=10
  colors=00073J63J85KA8LCAMEDOGFQIGSKIQMKTLMVKRXJWZ\
  I``HgcdnjqsltwnuzkvylvwmqtnDqo8np<6>6Yw6jx6jx<2>Q\
  Nt<6>zeu<3>RE_aUOliCpj6sk1oY1lL1<14>kpCkrCisG<7>Z\
  vj<11>Lw1<4>Dw9IwALwBOwERwH<4>awUcwR<3>cwJ<3>cwOc\
  wPdwRewS<6>lw_mw`nw_<2>qwYrwXrwWrwW<2>rwf<13>rw`r\
  w`sw_tw_<4>ywYzwXzwXzwW<50>zwBzw5<36>zwBzwX\
  <2>zwUzwZzw`zwa
  }

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
}