int MandelSetCount( double startx, double starty, int limit) { int count; double x=startx, y=starty; double newx, newy, funSq; funSq = startx*startx + starty*starty; for (count=0; count<limit && funSq<4.0; count++ ) { newx = x*x - y*y + startx; newy = 2.0*x*y + starty; funSq = newx*newx + newy*newy; x = newx; y = newy; } return count ; }
Comments:
In this function, the value Ck
is newx + j*newy
;
the value Ck2
is funSq
.