纵波在弹性界面散射的左普里兹方程MATLAB代码，实现纵波散射后反射波和投射波反射系数随波入射角变化关系-Longitudinal waves in elastic interface scattering equation of the left Prydz MATLAB code, and achieve the P-wave scattering of the reflected wave after wave reflection coefficient of the waves and

弹性界面横波散射的左普里兹方程，实现反射、透射系数随波入射角度的变化关系图，包含波从界面的四个象限入射的MATLAB代码-S-wave scattering of elastic interface, the left Prydz equation to achieve reflection and transmission coefficients of the waves changes in incident angle diagram, including the wave incide