问题:
已知空间三点坐标: P 1 ( x 1 , y 1 , z 1 ) P_{1}(x_{1}, y_{1} ,z_{1}) P1(x1,y1,z1) P 2 ( x 2 , y 2 , z 2 ) P_{2}(x_{2}, y_{2} ,z_{2}) P2(x2,y2,z2) P 3 ( x 3 , y 3 , z 3 ) P_{3}(x_{3}, y_{3} ,z_{3}) P3(x3,y…
三角形的外接圆圆心是任意两边的垂直平分线的交点。 三角形外接圆圆心叫外心。 /// <summary>/// Returns true if the point (p) lies inside the circumcircle made up by points (p1,p2,p3)/// </summary>/// <remarks>/// NOTE: A point on the edge is …