Hybrid CORDIC algorithms
Siyue Wang, Vincenzo Piuri, E.E. Wartzlander · IEEE Transactions on Computers · 1997
Each coordinate rotation digital computer iteration selects the rotation direction by analyzing the results of the previous iteration. In this paper, we introduce two arctangent radices and show that about 2/3 of the rotation directions can be derived in parallel without any error. Some architectures exploiting these strategies are proposed.