这个程序可以计算给定点处的小区信号范围覆盖。-is program computes a map of visibility from a selected point on a topography. It has been written to help the search for radio relay best location. Because it considers only direct line of sight, it gives a good estimation for

steepest descent/bfgs with polynomial line search

0.618法求解无约束优化问题的一维精确线搜索，matlab-0.618 method for solving constrained optimization problems of one-dimensional exact line search, matlab