About author:DU Tai-sheng（1965－） male native of Nanyang Henan an associate professor of Nanyang Insititute of Technology Ph．D． engages in method of optimization and FEM .
DU Tai-sheng XIAO Ze-chang . A Discussion about Reducing the Amount of Calculation of Direct Method[J]. Chinese Quarterly Journal of Mathematics, 2003, 18(3): 291-296.
