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 of Resurfacing. Resurfacing usually costs anywhere from $1 to $2 per square foot. The price varies based on factors such as your geographic location, local competition, the season and the condition of your driveway. So the cost to resurface a 3,000 square foot driveway would be anywhere from $3,000 to $6,000.Repaving is more expensive than resurfacing because the job requires significantly more time, materials and labor. The cost is usually at least one-third more than resurfacing, and sometimes double the cost.he price varies based on factors such as your geographic location, local competition, the season and the condition of your driveway. So the cost to resurface a 3,000 square foot driveway would be anywhere from $3,000 to $6,000.