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.
Microdermabrasion is quite affordable and much less expensive than other skin resurfacing treatments such as dermabrasion or laser peels which may cost around $2,500. Home microdermabrasion with a consumable-free system like Vacubrasion may cost less than $1 per session.icrodermabrasion is quite affordable and much less expensive than other skin resurfacing treatments such as dermabrasion or laser peels which may cost around $2,500. Home microdermabrasion with a consumable-free system like Vacubrasion may cost less than $1 per session.