[1] Walther J.S., A unified algorithm for elementary functions, [in:] Proc. Spring Joint Comput. Conf., 1971, 379–385.
[2] Walther J.S., Elementary floating-point Cordic function processor and shifter, US Patent 3766370, 1973.
[3] Muller J.M., Elementary functions: algorithms and implementation. Birkhauser Boston, 2nd edition, 2006.
[4] Hu X., Huber R., Bass S., Expanding the Range of Convergence of the CORDIC Algorithm, IEEE Transactions on Computers, Vol. 40, 1, 1991, 13–21.
[5] Llamocca-Obregоn D.R., Agurto-Rіos C.P., A Fixed-Point Implementation of the Expanded Hyperbolic CORDIC Algorithm, Latin American Appl. res., Vol. 37, 1, 2007, 1–10.
[6] Sudha J., Hanumantharaju M.C., Venkateswarulua V., Jayalaxmi H., A Novel Method for Computing Exponential Function Using CORDIC Algorithm, Procedia Engineering, 30, 2012, 519–528.
[7] Pottathuparambil R., Sass R., Implementation of a CORDIC based double-precision exponential core on an FPGA, Proceedings of RSSI, 2008, 1–4.
[8] Boudabous A., Ghozzi F., Kharrat M., Masmoudi N., Implementation of hyperbolic functions using cordic algorithm, in Proc. of the 16th Inter. Conf. on Microelectronics, 2004, 738–741.
[9] Volder J.E., The CORDIC Trigonometric Computing Technique, IRE Transactions on Electronic Computers, 1959, 330–334.
[10] Kantabutra V., Apparatus For Computing Exponential And Trigonometric Functions, United States Patent, US006055553A, Apr. 25, 2000.