一种基于刘维尔公式的二阶非齐次线性微分方程的解法A Solution Method for Second-Order Non-Homogeneous Linear Differential Equations Based on Liouville’s Formula
朱永婷, 张光威 科研立项经费支持
理论数学Vol.15 No.4, 全文下载: PDF XML DOI:10.12677/pm.2025.154131, April 23 2025
M角数恒等式及其应用—从M角数谈起The Identities of M-Gonal Number with Its Application—M-Gonal Numbers Revisited
郭铭浩, 郭志成
理论数学Vol.7 No.4, 全文下载: PDF HTML XML DOI:10.12677/PM.2017.74032, July 6 2017
北京市颗粒物污染特征及其大气环流成因分析 Analysis on the Characteristics of Atmospheric Particulate Matter and Its Causes of Atmospheric Circulation in Beijing
胡小玲, 李 艳, 夏佳琦, 吕春艳, 刘子奇, 蒋 强 国家自然科学基金支持
地球科学前沿Vol.10 No.5, 全文下载: PDF HTML XML DOI:10.12677/AG.2020.105038, May 28 2020
人教A版、北师大版、苏教版高中三角函数教材的对比分析Comparative Analysis of High School Trigonometric Textbooks of People’s Education Press A Edition, Beijing Normal University Edition and Jiangsu Education Edition
胡金波, 肖加清
教育进展Vol.15 No.4, 全文下载: PDF XML DOI:10.12677/ae.2025.154692, April 30 2025
刘桥一矿水文地球化学特征分析The Study on Hydrogeochemistry of Liuqiao 1 Mine
王义海, 胡宏伟
地球科学前沿Vol.10 No.6, 全文下载: PDF HTML XML DOI:10.12677/AG.2020.106041, June 11 2020
勾股定理离散性质的推广和应用—Pythagorean方程和特殊的M角数An Extension of Pythagorean Equation with Its Application—Pythagorean Equation and Special M-Gonal Numbers
理论数学Vol.7 No.4, 全文下载: PDF HTML XML DOI:10.12677/PM.2017.74033, July 6 2017