CORDIC - History

History

Volder was inspired by the following formula in the 1946 edition of the CRC Handbook of Chemistry and Physics:

\begin{align} K_n R \sin(\theta\pm\phi) &= R \sin(\theta) \pm 2^{-n} R \cos(\theta)\\ K_n R \cos(\theta\pm\phi) &= R \cos(\theta) \mp 2^{-n} R \sin(\theta) \end{align}

with

Some of the prominent early applications of CORDIC were in the Convair navigation computers CORDIC I to CORDIC III, the Hewlett-Packard HP-9100 and HP-35 calculators, the Intel 80x87 coprocessor series until Intel 80486, and Motorola 68881.

Decimal CORDIC was first suggested by Hermann Schmid and Anthony Bogacki.

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