frm:mandelbrotmix4r {; Jim Muth - Feb. 3, 1999
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
}

800panbg           { ;                                       t=  1:00:41.24
                     ; on a P233 at 800x600  Feb 16, 2002  20:34:42
                     ; Image Copyright 2002 by Lee H. Skinner ver=2002
  reset=2002 type=formula formulafile=fractint.frm
  formulaname=mandelbrotmix4r function=recip passes=1
  center-mag=3.68797/-0.0122264/0.2739546 params=1/-4/-0.3/-8/0/525
  float=y maxiter=1200 inside=0 logmap=2 symmetry=none periodicity=0
  colors=000EeH<2>jtCzzszz`zzH<3>ua4sV0lP0eI1ZC1`52dA0p07Xe0z3lX2QV1QT0P<2\
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  }