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Salo Finkelstein (born 1896 or 1897, date of death unknown) was a mental calculator. He was born in Łódź (then within the Russian Empire, now in Poland) to a Jewish family. While at school he was above average in mathematics, and discovered his calculating abilities as well as his faculty in memorizing numbers.
Mental calculators were in great demand in research centers such as CERN before the advent of modern electronic calculators and computers. See, for instance, Steven B. Smith's 1983 book The Great Mental Calculators , or the 2016 book Hidden Figures [ 2 ] and the film adapted from it .
Thomas Fuller (1710 – December 1790), also known as "Negro Demus" and the "Virginia Calculator", was an enslaved African renowned for his mathematical abilities. [ 1 ] History
Shakuntala Devi (4 November 1929 – 21 April 2013) was an Indian mental calculator, astrologer, and writer, popularly known as the "Human Computer".Her talent earned her a place in the 1982 edition of The Guinness Book of World Records.
The great mental calculators: The psychology, methods, and lives of calculating prodigies, past and present. New York: Columbia University Press. ISBN 0-231-05641-9. "Woman's Long-Term Memory Astonishes Scientists". (April 20, 2006). National Public Radio. (Part 2 includes "AJ" in her own words.)
Pages in category "Mental calculators" The following 47 pages are in this category, out of 47 total. This list may not reflect recent changes. ...
Mental calculation consists of arithmetical calculations using only the human brain, with no help from any supplies (such as pencil and paper) or devices such as a calculator. People may use mental calculation when computing tools are not available, when it is faster than other means of calculation (such as conventional educational institution ...
He is also known as the only Mental Calculator to win all possible titles in Calendar Calculations, this being the World Cup, Memoriad and the World Record, in 2008. Jan van Koningsveld also held the world record for multiplying two five-digit numbers. He solved ten tasks correctly in 3:06 minutes on 25 November 2005.