Difference Methods 舍弃余项,得到差分方程 2vl2+ +q2=f 我们在每个节点上建立方程 difference methods for BVP 2003, Fudan University, Chen Wenbin-p.6/50Difference Methods L h u i ≡ − u i+1 − 2 u i + u i − 1 h 2 + q i u i = fi difference methods for BVP, 2003, Fudan University, Chen Wenbin – p.6/50