长尾科技的博客/* 判断是是否在圆上 */int isAtCircle(int x, int y, int r){/* 将(x, y)转换为相当圆心(r, r)的坐标 */int rx = x - r;int ry = y - r;double d = sqrt(rx*rx + ry*ry) - r; /*计算到圆心的距离*/if(fabs(d) < ...
cunjiu9486的博客R is a programming language which is mainly used for statistical work. We can use for loops in R in different ways. We can use R for loop with the vector data type and in a regular way like other prog...