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一种自适应的四阶Newton-Cotes求积方法 总被引:1,自引:0,他引:1
本文给出了一种基于四阶Newton-Cotes公式的自适应求积算法,该算法能根据给定的容许误差,由计算机自动选取积分步长,克服了由于被积函数的性态不好而导致积分较复杂的缺陷. 相似文献
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本文提出了一种求解双目标规划的直接算法---非精确交替方向方法,并证明了算法的收敛性.初步的数值实验说明了所提出的算法是有效可行的. 相似文献
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相分离聚合法:(Ⅰ)羧酸型共聚功能微球的合成 总被引:1,自引:0,他引:1
Crosslinked functional microspheres with Carboxylic group have been synthesized by the method of Phaseseparated polymerization from monomers of methacrylic acid and other vinyl-type monomers. The effects of reaction condition such as comonomer, crosslinking agent, initiator and polymerization temperature, as well as polymerization time on the morphological structure of microspheres formed have been studied. The functional polymeric microspheres with good spherical form, diameter near 5 micrometers, narrow dispersion in diameter and contained carboxylic group can be synthesized stably. 相似文献
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