Mandelbrot(XAXIS) {; Mark Peterson
  ; Classical fractal showing LastSqr speedup
  z = Pixel, z = Sqr(z):  ; Start with z**2 to initialize LastSqr
   z = z + Pixel
   z = Sqr(z)
    LastSqr < 4	  ; Use LastSqr instead of recalculating
  }

0 {;
     z = z*z + p1
    |z| < 4
  }

1 {;
  z = Pixel:
   z = z*z + p1
    |z| < 4
  }

2 {;
  z = Pixel:
   z = 2
   }

Mandelbrot2(XAXIS) {; Mark Peterson
  ; Classical fractal showing LastSqr speedup
  z = Pixel, z = z*z:
   z = z + Pixel
   z = z*z
    |z| < 4
  }