本源码实现了一个在3D编程中很重要的四元数的类。在写这个类前提还包括对三维空间中向量类，以及4*4矩阵的运算。四元数对于三维模型的旋转能够很好的计算。...

代码说明：

本源码实现了一个在3D编程中很重要的四元数的类。在写这个类前提还包括对三维空间中向量类，以及4*4矩阵的运算。四元数对于三维模型的旋转能够很好的计算。-The source to achieve a 3D programming in a very important class Quaternion. At the time of writing the premise of this class also includes three-dimensional vector space categories, as well as 4* 4 matrix arithmetic. Quaternion for the rotation of three-dimensional model can be well calculated.