Abstract : this paper discusses high order numerical model of non - linear boundary equation . by using integral technique , the boundary condition problem is turned into a form initial condition problem . we construct 4 order numerical formula . the convergence theory is given and proved . the examples show that our method has fast convergence speed and less numerical time 文摘:讨论非线性边值问题的一种高精度计算模型.利用积分值将边值问题转化为形式初值问题,构造了一类四阶精度的计算格式,证明了收敛性.通过算例表明该方法收敛速度高,计算量小