cordic算法，让你了解cordic算法的主要原理和主要功能-cordic algorithm, so you know cordic algorithm and main function of the main principles

坐标旋转数字计算机算法利用简单的移位和加法实现sin，cos，tan，arctan等函数的计算，适合计算机处理，速度快。(The algorithm of coordinate rotation digital computer realizes the computation of functions such as sin, cos, tan and arctan by simple shift and addition, which is suitable for computer pro