说明：  CORDIC（Coordinate Rotation Digital Computer）算法即坐标旋转数字计算方法，是J.D.Volder1于1959年首次提出，主要用于三角函数、双曲线、指数、对数的计算。该算法通过基本的加和移位运算代替乘法运算，使得矢量的旋转和定向的计算不再需要三角函数、乘法、开方、反三角、指数等函数。
(CORDIC (Coordinate Rotation Digital Computer) algorithm is the coordinate rotation digital calculation method, is J.D.Volder1 first proposed in 1959, mainly for trigonometric, hyperbolic, exponential, logarithmic calculation. The algorithm does not need trigonometric functions, multiplication, prescribing, inverse triangles, exponential and so on by the basic addition and shift operations instead of multiplication.)