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.
Pool resurfacing costs. OâHanlon and Maroney say resurfacing with the pebble-based material costs $4.75 to $5 for each foot of internal surface area. Therefore, a pool with an internal area of 1,000 feet will cost around $5,000 to resurface. Maroney says the typical resurfacing job costs $4,500 to $5,000, but the same job could cost three times as much in northern states. In Florida, he says more people have smaller pools, and he has easy access to resurfacing materials, which reduces his costs.