Issue No. 03 - July-Sept. (2012 vol. 34)

ISSN: 1058-6180

pp: 44-54

DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/MAHC.2011.61

ABSTRACT

In January 1950, George W. Reitwiesner published an article describing the first use of a computer, the ENIAC, to calculate the decimal expansion of π. Starting with Reitwiesner's description of the calculation, the ENIAC's architecture, how it was programmed, and the mathematics used, this article examines why the calculation was undertaken, how it was done, and what was subsequently learned.

INDEX TERMS

general purpose computers, general-purpose computer, π decimal expansion, ENIAC architecture, Mathematics, Programming, Transmitters, Monte Carlo methods, Encoding, Computational modeling, History, George W. Reitwiesner, general purpose computers, general-purpose computer, ¿ decimal expansion, ENIAC architecture, Mathematics, Programming, Transmitters, Monte Carlo methods, Encoding, Computational modeling, History, theoretical mathematics, Computers, Programming, Transmitters, Monte Carlo methods, Encoding, Computational modeling, John von Neumann, history of computing, ENIAC, determination of π, early mathematical applications of computers

CITATION

B. J. Shelburne, "The ENIAC's 1949 Determination of π",

*IEEE Annals of the History of Computing*, vol. 34, no. , pp. 44-54, July-Sept. 2012, doi:10.1109/MAHC.2011.61