The introduction of mathematical software package into the field of math education has brought about many benefits, chief among them the ability to obtain more accurate and sometimes precise results more quickly. In a sense, these programs are design

地形图质量检验：数学精度检测，包括平面、高程、间距误差的检测与统计。-Topographic map mathematical precision testing

本书以实例形式介绍采用Visual C#语言对AutoCAD进行二次开发的技术。全书包括基础篇和应用篇两部分，其中基础篇主要介绍AutoCAD开发中常见的图形对象获取、图形绘制、图形编辑等实例，应用篇主要结合实际工程问题、基于数学理论知识、采用程序设计来解决这些问题.-This book introduced in the form of examples of using Visual C# language for AutoCAD secondary development of techn