05年全国大学生数学建模比赛的优秀论文,对参加数学建模比赛的同学是一个很好的参考资料。-Best papers of 2005 Mathematical Modelling Contest, is a a good reference for the students preparing for the mathematical modelling Contest.
经纬度BL换算到高斯平面直角坐标XY(高斯投影正算)的源码及算法-BL converted to latitude and longitude Gaussian plane rectangular coordinates XY (Gauss projection is counting) the source code and algorithm