数学物理学报 ›› 1983, Vol. 3 ›› Issue (1): 99-112.
陈翰馥
Chen Hanfu
摘要： If the accurate value of a function h(·) is available at any point then there are many numerical methods recursively estimating the root of the regression equation h(·)=0.But the measurement is usually disturbed by random errors.In this case how can the root of h(·) be found out? This is just the problem investigated by stochastic approximation.