shockwave          { ; Fractal of the day, 10-09-97
                     ; 12 min at 100mhz on a 486 at 640x480
  reset=1960 type=formula 
  formulaname=XY-YZrot-N passes=1
  center-mag=0.560488/-0.39823/0.2826667 params=30/1.05/0/0/0/0.4
  float=y maxiter=500 bailout=100 inside=bof60 logmap=yes
  symmetry=none periodicity=10
  colors=000kH_<10>iF9iF7kH6<14>z_1<18>5E4<15>62BKdK<12>YW1<20>HBrHAtICs<2\
  0>`f``g`biQcjFdk5<10>CBX<2>31R<20>QMa<3>0fF<23>5S3<20>I9nDSg8j`<12>5IC<1\
  4>xmF<11>nWXnUYkIdkIb
  }

frm:XY-YZrot-N {; Jim Muth, thanks to Benno
; real(p1) = rotation angle in degrees, imag(p1 = exponent of Z,
; p2 = parallel planes,
; p3 = point of rotation and parallel planes,
z=sin(real(p1)*.01745329251994)*real(pixel)+p2,
c=cos(real(p1)*.01745329251994)*real(pixel)+flip(imag(pixel))+p3:
z=(-z)^imag(p1)+c,
|z| <= 25
}