Typo in Three Points Circle problem description
There are mistakes in "the circle with central coordinates of (a,b) and radius of r can be described with the following equation:
"(x-x0)^2+(y-y0)^2=r^2""
(a,b) should be (x0,y0)
URL from: http://www.checkio.org/mission/three-points-circle/
HTTP_USER_AGENT: Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/35.0.1916.114 Safari/537.36
"(x-x0)^2+(y-y0)^2=r^2""
(a,b) should be (x0,y0)
URL from: http://www.checkio.org/mission/three-points-circle/
HTTP_USER_AGENT: Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/35.0.1916.114 Safari/537.36
