复化三点Gauss-lengend公式求pi，包含飞行器飞行中的姿态控制，如侧滑角，倾斜角，滚转角，俯仰角，有较好的参考价值。- Complex of three-point Gauss-lengend the Formula pi, It comprises aircraft flight attitude control, such as slip angle, tilt angle, roll angle, pitch angle, There are good reference value.