The Birth of Cordic

  • Jack E. Volder


The very earliest history of the CORDIC computing technique—a highly efficient method to compute elementary functions—is presented. The CORDIC technique was born out of necessity, the incentive being the replacement of the analog navigation computer of the B-58 aircraft by a high accuracy, high-performance digital computer. The revolutionary development of the CORDIC technique is presented, along with details of the very first implementations: the CORDIC I prototype and the CORDIC II airborne digital navigation computer.


Navigation System Computer Design Navigation Computer Kind Permission Navigation Problem 
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    J.E. Volder, “The CORDIC Trigonometric Computing Technique,” IRE Transactions on Electronic Computers, vol. EC-8, no.3, 1959, pp. 330–334.CrossRefGoogle Scholar
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    J.E. Volder, “The CORDIC Computing Technique,” Proceedings of the Western Joint Computer Conference, 1959, pp. 257–261.Google Scholar
  3. 3.
    Advanced Systems Group, “Technical Description of Fix-taking Tie-in Equipment,” General Dynamics Aerosystems Report FZE-052, 6 Aug. 1962.Google Scholar
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    D.H. Daggett, “Decimal-Binary Conversion In CORDIC,” IRE Transactions on Electronic Computers, vol. EC-8, no.3, 1959, pp. 335–339.CrossRefGoogle Scholar
  5. 5.
    D.S. Cochran, “About utilizing CORDIC for computing transcendental functions in BCD,” Private communication to Jack Volder, 14 March 1966.Google Scholar
  6. 6.
    J.E. Volder, “Binary Computation Algorithms for Coordinate Rotation and Function Generation,” Convair internal report IAR-1.148, Aeroelectronics group, 15 June 1956.Google Scholar

Copyright information

© Kluwer Academic Publishers 2000

Authors and Affiliations

  • Jack E. Volder

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