An ellipse has 2 foci. They are the points of the major axis which are at distance $a$ from the intersection between the minor axis and the ellipse. The distance between the foci and the center is then called the linear eccentricity $f$.
Find Your Surgeon. Find Your Surgeon. The average cost of laser skin resurfacing is $2,222 for ablative and $1,113 for non-ablative, according to ASPS 2012 statistics. The cost of laser skin resurfacing may vary, and the aforementioned fees are the national average surgeon/physician fee only.ind Your Surgeon. The average cost of laser skin resurfacing is $2,222 for ablative and $1,113 for non-ablative, according to ASPS 2012 statistics.
Cost. While IPLâ¢ photorejuvenation is generally more costly than procedures like microdermabrasion and chemical peels, it is less expensive than most cosmetic surgery and laser skin treatment. Still, the price for a single photofacial/fotofacial session can be as high as $500 or $600.ost. While IPLâ¢ photorejuvenation is generally more costly than procedures like microdermabrasion and chemical peels, it is less expensive than most cosmetic surgery and laser skin treatment. Still, the price for a single photofacial/fotofacial session can be as high as $500 or $600.