phosphenes         { ; Fractal of the day, 10-02-98
                     ; par file, 40min, 100mhz, 640x480
  reset=1960 type=formula 
  formulaname=N-XY-XWrotation passes=1
  center-mag=-0.00000108883338219/+0.01224141799883222/13528\
  5.7/0.04146/-90 params=94/1000/0.993/0.0015/-0.0078/0.993
  float=y maxiter=1200 bailout=25 inside=0 logmap=yes
  symmetry=none periodicity=10 colors=000LlQ<6>MoSQsn<28>VXs\
  VXsWWr<58>r8Gu7H<68>8H57F4<84>LlQ
  }

frm:N-XY-XWrotation {; Jim Muth, thanks to Benno Schmid
; real(p1)=rotation angle in degrees, imag(p1)=power of Z
; p2=parallel planes, p3=rotation point and parallel planes
a=real(p1), b=imag(p1),
z=sin(a*.01745329251994)*flip(imag(pixel))+p2,
c=cos(a*.01745329251994)*flip(imag(pixel))+real(pixel)+p3:
z=z^b+c,
|z| <= 16
}