数学建模培训中对学生计算机应用能力的培养

在实施数学建模培训时必须重视将数学教学与计算机应用相结合，培养学生利用计算机进行文字处理、数值计算、图形变换、数据信息分析处理以及信息检索的能力，教会其使用多种数学应用软件．对学生建模中计算机应用能力的培养必须制定全面、系统、有效的实施方案，将枯燥的数学研究变得生动有趣，调动学生的学习兴趣，以期提高参赛成绩，从而达到培养学生计算机应用能力的预定要求．     

双圆弧弧齿锥齿轮三维参数化设计的实现

综合应用C语言、AutoLISP语言和VC 语言编制了一个双圆弧弧齿锥齿轮交互式参数化设计软件.其中,C语言是计算部分,即完成网格模型和表面模型中空间网格交点的求解等工作;AutoLISP语言是模型建立部分,即在AutoCAD中生成三维模型;VC 语言是程序界面的生成部分,即在Windows环境下生成可视化界面,进行各种参数的动态输入.     

Instructional Technology and Molecular Visualization

The effect of intervening use of molecular visualization software was tested on 73 first-year general chemistry students. Pretests and posttests included both traditional multiple-choice questions and model-building activities. Overall students improved after working with the software, although students performed less well on the model-building portion of the evaluations. First semester and second semester students exhibit differences in abilities consistent with their different exposure to molecular geometry.