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

sgCore SDK 一个小型、但很高效的实体建模程序包，方便实用-sgcore is a solid modeling library created by the Geometros company. This library is a kernel of the parametrical CAD system SolidGraph. sgcore was developed on C++ only, exports about 30 classes and realizes many al