各种kalman滤波器的设计，添加噪声处理，数值分析的EULER法。- Various kalman filter design, Add noise processing, EULER numerical analysis method.

Euler Runge_kutta 一维空间声场 波动方程-Euler Runge_kutta u4E00 u7EF0 u7A7A u95F4 u58F0 u573A u6CE2 u52A8 u65B9 u7A0B

由点的三维坐标，进行批量计算所在点的局部曲面的法向量，法向量中x赋值给予，y,z计算得出。然后计算欧拉角表示的坐标(From the point of three-dimensional coordinates, batch calculation of the local surface of the normal vector, the normal vector x assignment given, y, Z calculation. Then calculate the coordin