Evolution of Pi After Computers

  • John Wrench and Levi Smith achieved pi with the value of 1 120 places with the use of a desk calculator.

    John Wrench and Levi Smith achieved pi with the value of 1 120 places with the use of a desk calculator.
    John Wrench and Levi Smith (American mathematicians) achieved pi with value of 1 120 places with the use of a desk calculator creating the beginning of the computer era.
  • George Reitwiesner, John von Neumann and their team formulated 2037 values of pi with an ENIAC.

    George Reitwiesner, John von Neumann and their team formulated 2037 values of pi with an ENIAC.
    George Reitwiesner and John von Neumann who were leaders of a mathematical team formulated 2037 values of pi with an ENIAC (Electronic Numerical Integrator and Computer). This calculation toke 70 hours - computer time - on a computer. This team was the first to use a computer of its kind to compute the value of pi. They used an inverse tangent infinite series to formulate their statement.
  • S.C. Nicolson & J. Jeenal calculated 3093 values of pi in 13 minutes using the NORC.

    S.C. Nicolson & J. Jeenal calculated 3093 values of pi in 13 minutes using the NORC.
    S.C. Nicolson & J. Jeenal calculated 3093 values of pi in 13 minutes using the NORC which was a computer that was made in 1954 which was the most powerful technological computer in its time.
  • Francois Genuys produced 10 000 correct values of pi in 1.7 hours using the IBM 704.

    Francois Genuys produced 10 000 correct values of pi in 1.7 hours using the IBM 704.
    Francois Genuys was the first person to use the newly developed IBM 704 which was the first mass-produced computer with formulated arithmetic hardware to calculate pi. Genuys produced 10 000 correct values of pi in 1.7 hours, Genuys then went onto develop 16,167 values of pi in 1959, Paris, this took him 4,3 hours again using the IBM.
  • Jean Gilloud & M. Dichampt formulated 500 000 values of pi using the CDC 6600.

    Jean Gilloud & M. Dichampt formulated 500 000 values of pi using the CDC 6600.
    Jean Gilloud & M. Dichampt formulated 500 000 values of pi using the CDC 6600 which was considered the world's first supercomputer that was designed to run mathematical and logical operations faster than any other computers and this is why it took Gilloud and Dichampt 28 hours to formulate this number (it would of taken the IBM 7090 28 hours to formulate half as many values).
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    Eugene Salamin and Richard Brent published iterative algorithms to formulate pi.

    Eugene Salamin (American physicist) and Richard Brent (Australian scientist) published iterative algorithms. An iterative algorithm repeats a specific calculation and produces a result in each step that is converged to the desired value. This algorithm was a new way to formulate pi that was easier as the infinite series algorithm.
  • David H. Bailey calculated 29 360 111 values of pi using the CRAY-2.

    David H. Bailey calculated 29 360 111 values of pi using the CRAY-2.
    David H. Bailey (mathematician and computer scientist) calculated 29 360 111 values of pi, he used the CRAY-2 which was the world’s best and fastest supercomputer at the time.
  • Yasumasa Kanada and Yoshiaki Tamura developed 33 554 414 digits of pi using the HITAC S-810/20

    Yasumasa Kanada and Yoshiaki Tamura developed 33 554 414 digits of pi using the HITAC S-810/20
    Yasumasa Kanada and Yoshiaki Tamura developed 33 554 414 digits of pi in September using the HITAC S-810/20 which was a supercomputer that was the best in its time. Kanada and Tamura then went on in October to produce 67 108 839 correct digits only a month later using the same supercomputer. Yasumusa is a famous Japanese mathematician, most well-known for his number of world records including the formulation and calculation of pi in the past 3 decades.
  • Simon Plouffe created a formula that enables the nth hexadecimal digit of pi to be accumulated without having to calculate the preceding digits of pi.

    Simon Plouffe created a formula that enables the nth hexadecimal digit of pi to be accumulated without having to calculate the preceding digits of pi.
    Simon Plouffe created and found a formula that enables the nth hexadecimal digit of pi to be accumulated without having to calculate the preceding digits of pi.
  • Peter Trueb used a computer to calculate 22,459,157,718,361 values of pi in 105 days.

    Peter Trueb used a computer to calculate 22,459,157,718,361 values of pi in 105 days.
    The latest technology of pi is all done on home computers done with other special appliances. Peter Trueb used a computer to calculate 22,459,157,718,361 values of pi in 105 days.