The Walsh function system is a complete orthogonal system, it constructs the Abelian group. Hence, both the differential equation and the integral equation could be solved by using the Walsh function.是什么意思_The Walsh function system is a complete orthogonal system, it constructs the Abelian group. Hence, both the differential equation and the integral equation could be solved by using the Walsh function.在线翻译_英语_读音_用法_例句