摘要: 解三元二次方程组X,Y,R为未知数,x1,y1,x2,y2,x3,y3为3点坐标(x1-X)²-(y1-Y)²=R²(x2-X)²-(y2-Y)²=R²(x3-X)²-(y3-Y)²=R²- (void)drawRect:(CGRect)rect { CGPoint point1=CGPoin...阅读全文
posted @ 2015-03-11 10:19 Ethan_村长 阅读(401) 评论(1) 编辑