Tshaxz

摘要： 已知正方形相邻两点(a,b) or (x1, y1)与(c,d) or (x2, y2)坐标 公式： \( (x_3,y_3) = (c + (b-d), d - (a-c)) \\ (x_4,y_4) = (a + (b-d), b - (a-c)) \\ (x_5,y_5) = (a - (b- 阅读全文