rkf78 matlab算法 可解高阶常微分方程以及轨道积分等-rkf78 matlab order ordinary differential equation solution algorithm and the orbit integration, etc.

轨道力学基本子程序，包括： 位置速度和轨道根数相互转换；地球引力场系数；JPL精密历表；RKF78数值积分器-Orbital mechanics subroutine, including: position, velocity and orbital elements are interchangeable Earth s gravitational field coefficient at JPL precise ephemerides RKF78 numerical integrat

matlab版RKF78，以常见的fortran版rkf78积分器在matlab下改写而成，亲测有效-matlab version RKF78, with common fortran version rkf78 integrator adapted under matlab, effective pro-test