Abstract: This article recommends a new computation way in treating gradually-varied-flow profiles for natural channels. It has many obvious advantages in application to natural channels. Finally, this paper presents a pocket computator (JI-59, 58, 58c) program and an illustrative example.

摘要： 本文提出天然河道水面线推算的一个新的计算途径——数值方法,该解法与目前广泛采用的试算法、图解法相比,具有比较明显的优点。文中给出了袖珍程序或计算器(TI-59、58、58C)的通用计算程序。最后文中计算了一个实例。