此函数通过两点的大地经纬度（Ja,Wa）和（Jb,Wb）计算两点间距离 Dis -this function through the 2:00 and Geodesy (Ja, Wa) and ( `, mg) calculated the distance between two points Dis

采用人工粘性滤波法的Warming-Beam差分格式求解一维激波管问题的C语言代码-Artificial viscosity of the Warming-Beam Filter Difference Scheme for Solving One Dimensional Shock Tube Problem C language code