Polytechnical_Brot { ; Fractal of the day, 30-07-99
                     ; t=0:08:00.26  p233, 640x480
  reset=1960 type=formula 
  formulaname=MandelbrotMix4 function=recip passes=1
  center-mag=-12.71165408467722/+0.00434869119593474/\
  467361/1/-55 params=0.03/1/-25/1000/35/0 float=y
  maxiter=3000 bailout=25 inside=0
  logmap=149 symmetry=xaxis periodicity=10
  colors=AA0AAF<15>AAFAAFAAG9AHBAI<5>AFOAGPBHQCIR<2>D\
  JSDJSFJR<33>rJEsJEsKF<6>wRFwSGwTGwUGwVG<11>wfHwgHwg\
  HvgHufJteK<4>kaRg`Tc`U<5>WWaUVcTUc<3>NRcMQcLQcKPcIO\
  c<5>9Jc<26>EVcEVcEWdEWeEXeEXd7Ti<7>ZgS<46>loilojlnj\
  <5>nmmnmmnmmnmmomm<8>qmmrmmrmmsmmsmm<13>zmm
  }

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
}