A unified algorithm for elementary functions
AFIPS '71 (Spring) Proceedings of the May 18-20, 1971, spring joint computer conference
A Cordic Arithmetic Processor Chip
IEEE Transactions on Computers
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The design of a high-speed digital processor for the sine and cosine functions is discussed. The hardware provides a significant speed advantage over software calculations of these functions. The special processor provides floating point results of 35 bit accuracy within 40 µs after the argument is loaded. This is faster by a factor of 5 over the minicomputer software formerly used. The hardware has the further feature that both the sine and the cosine of the argument are calculated simultaneously.